This is a complex, not supported configuration, and is most probably a mistake,
so better skip such roots.

It is not unusual for unix users to put the home directory under git,
to preserve all configs there.

After some discussion, it was decided, that the notification is redundant:
we found the roots, and they should just work.
This approach already exists for the "simple case" (single root equal to the project dir),
and didn't cause any issues or complaints.

Provide a registry key to change the behavior if needed, e.g. for certain IDEs.

When user changes a mapping, he knows what he is doing, and he sees it in the Settings,
so no need to rescan.

Auto-adding a single root in simple cases proved to be convenient and caused no issues. This commit generalizes behavior to add all roots under the project dir, and the root above it (unless the whole project root is a Git root).

Can be switched off via `vcs.root.auto.add`

As it were previously, Roots 'near' the project dir (i.e. not under and not above the project dir, e.g. from some content roots with linked source) are ignored (but are displayed in Settings | Version Control).

This fixes IDEA-89259 and IDEA-192333

* Do not ignore differences in "unchanged" fragments.

PY-25729 false positive "Overline length must match the underline" for reStructuredText section title with back tick

move Ras String Literal support to JDK_X level

This allows to avoid issues with undeletable changelists in rare occasions.
Ex: due to logic errors or because related plugin was disabled and can't
remove the flag anymore.

IDEA-CR-33115

via LanguageCodeStyleSettingsProvider