D8852: Fix crash deep inside VcsOverlayProxyModel::data()

[Kevin Funk]

kfunk added a comment.


  In https://phabricator.kde.org/D8852#168856, @apol wrote:
  
  > What's the crash?
  
  
  For the crash report, see: https://bugs.kde.org/show_bug.cgi?id=384162
  
  > This was done so that we weren't monitoring changes if nobody was listening to them.
  
  IIUC then the changes model will *always* be instantiated, as the project tree view tracks VCS branches to get the branch name of the project(s). Thus the optimization probably no longer makes sense.

REPOSITORY
  R32 KDevelop

REVISION DETAIL
  https://phabricator.kde.org/D8852

To: kfunk, apol
Cc: mwolff, dfaure, brauch, apol, kdevelop-devel
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