For instance, when there are no changes/unversioned files in the tree

* Ensure "restoreState()" is called exactly once per each commit. To correctly initialize "per commit" options like amend.
* Create commit options lazily and not in dumb mode, as many options will be disabled in dumb mode. This same issue is also the case when creating commit options on project start.

vcs: Enable mnemonic for commit action in before commit checks confirmation dialogs in non-modal commit

vcs: Refactor "SingleChangeListCommitWorkflowHandler" - remove explicit dependency on "CommitChangeListDialog"

This breaks some plugins that explicitly cast "CheckinProjectPanel" to "CommitChangeListDialog". But such plugins should be updated anyway to support non-modal commit.

cba92fe6862903d82ce0df11e504defaaba7678a follow-up