* stable-2.11:
Update buck to ba9f239f69287a553ca93af76a27484d83693563
Fix Incorrect owner group matching behaviour for creating projects
Remove unused account constants properties
Add username to stream-events queue entries
Set correct revision of cookbook plugin
Revert "Prevent usage of not initialized IndexCollection"
Handle commit validation errors when creating new change via REST
Handle commit validation errors when publishing change edit
ChangeEditUtil.publish: Remove declaration of unthrown exception
Prevent usage of not initialized IndexCollection
The changes:
Handle commit validation errors when creating new change via REST
Handle commit validation errors when publishing change edit
are reverted by this merge due to conflicts with refactored code
on master. The fixes will be reapplied in follow-up commits
Change-Id: I9db2ec48c0f9cde8f176976f6caf4aa0bbe66b72
f80ab0ad5b