The bug existed because a child shell doesn't set the environment variable $SHELL.

```
$ echo $SHELL
/bin/bash
$ /bin/sh -c 'echo $SHELL'
/bin/bash
```

This behaviour is described in https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap08.html :

> SHELL
> This variable shall represent a pathname of the user's preferred command language interpreter.

I.e. it should be assumed that `$SHELL == $(getent passwd "$(whoami)" | cut -d: -f7)`

(cherry picked from commit dbf778a32e8198e542792e91d40e112ded2590c4)
(cherry picked from commit 529f8d5e2ac085ee902cc8c7dd5db9e1a3732515)

GitOrigin-RevId: 00d660e6df5b67d80523f30f0ecf1b836f691942

(cherry picked from commit e265d1c6420116f000c8fb1c6f41856f8bfafbfe)

IJ-MR-128043

(cherry picked from commit ca57a13a346f3977881d598882f400c0380f61dc)

GitOrigin-RevId: 863a94c2d8a049d4c8a4344193ea90be7b6e662c

(cherry picked from commit 16f5a49227de384193be807d3b9459e4b2babc11)

IJ-CR-128752

GitOrigin-RevId: 276cd3767a7b7b89bf0388daa1110782ec4ab608

(cherry picked from commit 3dcf428ac631435614dfeabc8c3e80e7ec4ce29c)

IJ-CR-128650

GitOrigin-RevId: edc47e3408dcd6679da24fc9d3b6d96e86e688ee

ConnectException exists in java.net and in Gradle API. The method originally caught the Gradle's one, worked for Gradle. When abstracted to support Maven, it was switched to java.net.ConnectException, that worked for Maven, but failed for Gradle.
Inspecting the root cause will make it build tool agnostic.

(cherry picked from commit efc07dc7a69f258ace7cf1339a39fe1fccd36bf0)

IJ-CR-128688

GitOrigin-RevId: 7bad4907aec6e42ebe4d1742b30542eccc2abf82

IJ-CR-126919

(cherry picked from commit 84c41de2aef102a125a3fe7df12d88566292a97b)

IJ-CR-126919

GitOrigin-RevId: 6090c3d2f504bdb2aa9de4d8552c836fd27906a5

(cherry picked from commit 85690e8eb9007e4e24ed6c2a37434e12820802cf)

IJ-CR-126919

GitOrigin-RevId: bab2cfde566874fed8d9a09072f7580208abb9e0

(cherry picked from commit f5285f2c3421ab7b568ee614c6672af8b7a8c19f)

IJ-CR-126919

GitOrigin-RevId: 71048cdc14ccb9e265d313d726f8b852064eb69b

(cherry picked from commit 8f53ca0c93d576109b6f47b9dcff585b5babb91b)

IJ-CR-126919

GitOrigin-RevId: 96b950f136943c3369459e687a747490f4cc1899

GitOrigin-RevId: 23469f8019109055d6ca452769c7023e1986f883

This is an anti-pattern and can cause infinite repaint loops
(like this issue) and other problems.

The perfect fix would be to just update the preferred size
once when the state changes and cache it somewhere,
but unfortunately the size depends on the state outside
the component, for example, the number of tabs in
the tool window. It's impossible to reliably track updates
to the whole state from within the component.

So instead of a proper fix, let's work around the issue
by not calling setBorder, but instead setting up a border
with mutable insets once and then just updating those
insets. This way, we at least don't have any hidden repaint()
calls in getPreferredSize().

(cherry picked from commit fd31eba44f2c90de503f3b22210d007af09c7319)

IJ-CR-128482

GitOrigin-RevId: 5b38a62b6c3bf18f366ee97bb0c77e7ee00c0221

(cherry picked from commit 04e1d79de00128faddcefd5e5fd1c9bdc66daba5)

IJ-CR-128237

GitOrigin-RevId: 24947a453d408a38ccc4d457eb49b3f08cdb239c

(cherry picked from commit 9f2a8972a83a718c8a6c29dd89eefb4e613eaf91)

IJ-CR-127217

GitOrigin-RevId: 0987eccc214462684ef17c833a35dfadd104595a

(cherry picked from commit 3b1facb445cd5722cea7f5b65ae3d0d448cc3253)

IJ-CR-127521

GitOrigin-RevId: 36074561856ab39c77a085fe4a37162a757f5e18

(cherry picked from commits 660b9160cb05c1c7858555229a1c1f635416e11a, cb7fb961027d76597fd92c2b8ed98e2f23fd8a2b)
IJ-CR-128097

(cherry picked from commit 3fd8cbbac0238274728184b68eacd57bb4465016)

GitOrigin-RevId: 90d6747f134d4b96f53c3571b1b48c4bd9411fe8

IJPL-689 Documentation popup: the right button in definition switcher jumps when navigating between definitions

(cherry picked from commit 3f9549bc2dba7cb1752803da9aa9225bc748a286)

IJ-CR-128314

GitOrigin-RevId: 31c4a7446f4d9f621a426f906be41d2eca32dfac

Avoid conflict with AI assistant

#IDEA-348443 Fixed

(cherry picked from commit ab66061d6ec93e1ddfd1cd5443117bc8768c8f8c)

IJ-CR-128598

GitOrigin-RevId: a740ffea2d0fdf72105689d99f249838568a3c7b

Relaxed nullability requirement for DictionaryLayer in SaveTo, it already handles null gracefully, and, unfortunately, it is valid situation when we can't find layer by name, since it is stored as localized string value.

(cherry picked from commit 46442994aff7248c198d8d23ee0f3a9490521a9f)

IJ-CR-128485

GitOrigin-RevId: d45be8d43d4517db60674212794d059d67bc3303

(cherry picked from commit 6e1165fdcad1259432bc2a157e7be5c995368b33)

IJ-CR-128637

GitOrigin-RevId: 0c8104670ad34fd7dbfd9f7a7868817d6dd3b7cf

(cherry picked from commit b82cdf13bc5a34dcf0fc880118fb2b1cdcb45618)

IJ-CR-128637

GitOrigin-RevId: e9cd323bf6831a726a095517cc75b6f68cbf6dc6

We cannot detect significant sync time improvement while we are afraid of possible issue this would cause. Let's enable it a part of project isolation support. The Gradle isolated project issues: IDEA-341827.

(cherry picked from commit 12152b99302c423b90050d9572af1b7df4008e27)
(cherry picked from commit 7c1bf96dbef77c9898e8f4bfe5520e67cb34916c)

IJ-MR-128585

GitOrigin-RevId: 9e78c1c3f0b450ac9382dad410ff77426d341fd2

- Installation wizard

(cherry picked from commit 354ac140f16b6666a159f9a32ea1002189c28a35)
(cherry picked from commit a827bd2a7d116838c1bc9b7d3aa7df03e2a82ba7)

IJ-MR-128515

GitOrigin-RevId: b0baceba6daec86306cbfacec33ff832e7be24bd

- State for disabled plugin

(cherry picked from commit b635a7dae600c4e328d3f6c296bd0bcb792c83df)
(cherry picked from commit 002431716666caee69bc12fc71731e125665f4c4)

IJ-MR-128515

GitOrigin-RevId: 5822f50c838f03ab5cce49142d505eca20806b01

IJ-CR-127731

(cherry picked from commit 7b1621dd570b51286881f706880741a91d30a9e1)

GitOrigin-RevId: c8825e5c6a756f907a4501df9bf6d9ba0e2d8b0a

(cherry picked from commit 37e7d04f0e22e839fd2b2bee06bb685cfc292d49)

IJ-MR-128274

GitOrigin-RevId: 95661b02b7316c1ad96d9d5b5698b7dfcfa5448d

(cherry picked from commit f803d4d20a509db91f77553654095fa1f5b2449c)
(cherry picked from commit bea021ed36993bf02f7d70da292e48a9e0478314)

IJ-MR-128135

GitOrigin-RevId: 67718bd2d6318a6bb9967fabe9ed291e9edf8056

(cherry picked from commit 0d40e74fd4b4f1cc9142dc0a71da304ae7862450)
(cherry picked from commit 84bb4fcdf5ac13a3f3e7a1bdce530fc383cf42cc)

IJ-MR-128135

GitOrigin-RevId: f90d482d81f79dd43bf10d2778b59ccc424cdce1

(cherry picked from commit 31809179b1d34d4417ef61c25e01dd2a612ced29)

GitOrigin-RevId: 2680fe53c31a7b51c3aeceda1c588fdd77be41aa

(cherry picked from commit 537841dc02161bf722692f3ea197ff877b37b16a)

GitOrigin-RevId: 1b52367cdc871e74982a1e5cefe5ad8362194488

(cherry picked from commit 12a0bbfe6db84c77228ac70a2a8c5b81162a8401)

GitOrigin-RevId: 94fbb7bcd8c327b0020ee17bb842ec50ca51246a

(cherry picked from commit 83ce069d02aa39c0eec1783a10da16953ed0b8b5)

IJ-CR-127397

GitOrigin-RevId: 12892eee60e6eb51eb7c242adc04b379882c6563

[maven] IDEA-346450 - now IMPORT_ACTIVITY is not started in configuration phase, obsolete usages removed.

Added PROJECT_CONFIGURATION_STAGE to trace time used for different post-config activities

(cherry picked from commit f0e42f660e1a2ad3114a35c2619d89dfa44e7a5a)

IJ-CR-127397

GitOrigin-RevId: 11bbdc37e038daaf3762a984828da6684d366373

(cherry picked from commit 4a19db6d37857cf56317c13cc7978b0f024f913f)

IJ-CR-127972

GitOrigin-RevId: 2e9b6077588c358589856f5e5902e16f8c159e90

(cherry picked from commit 9d38da3eb2750e2b9f2239b8d80b0370632fcd85)

IJ-CR-127972

GitOrigin-RevId: ef32885cbb28c12ab0924f3edf6257e8298b2db4

(cherry picked from commit 4647cdcbcaeb7214f33d78918130331886ae09dd)

IJ-CR-128403

GitOrigin-RevId: f4a9d34984c2f1f446555c1c915bc7cd4d3355b1

IDEA-347679 support for converting <pre><code> and <blockquote><pre> to styled code blocks (in rendered mode)

(cherry picked from commit b94b84dd4137f354e1bf32d581b9f833a9858185)

IJ-CR-127794

GitOrigin-RevId: ab51de6065e206cd8d6edce1ca4a3033a87a3328

ActionsTreeTest - don't check for ActivateProjectToolWindow (empty if a project is disposed, don't fail the test)

(cherry picked from commit dd36311d21b6a8d0d1f3eba7f40906d87f00dc56)

IJ-CR-128083

GitOrigin-RevId: bee675d494505cf1651c0b82d3f0488d8e6cb751

(cherry picked from commit 20a61fd4c8fce75546f34e1ce9080fbea9385fde)

IJ-CR-128083

GitOrigin-RevId: f5ae4d0cfbdcc24d04497cf2a5709b93e53a4643

(cherry picked from commit db2483b578a56d70bfd8041be32f76b96cee0e5b)

IJ-CR-128083

GitOrigin-RevId: 2bec8ea6ecd0436c441cce524e8898677ef5535f

(cherry picked from commit a5ee7654ad41a6cd16b3aa5702288894a433b190)

IJ-CR-128083

GitOrigin-RevId: 6c5eb4ee5e37d45b02d17bd7214627e0b552781d