Pass the project name associated to every change reindexed.
This is key to achieve NoteDb compatiblity where the change is stored
into the project repository. This is a mandatory change to make any
plugin dealing with indexed events working properly with NoteDb.
Bug: Issue 8931
Change-Id: I84086b72a49ff6e8fdb6e2ed473ce231ea12f358
97d3dc6593