tree cbbcd17b123a458ee0fecfdcf1463f858ce0f65d
parent fe9b76abd29a063d20daeb4669aa1ae6a0962f90
author Daniel Dunbar <daniel_dunbar@apple.com> 1509924347 -0800
committer Daniel Dunbar <daniel_dunbar@apple.com> 1509928661 -0800

[Core] Fix a corner case in cancellation logic.

 - Cancellation was marking tasks as complete, which could result in subsequent
   builds failing to update them.

 - This basically never actually happens in practice, since that write only
   effected the in-memory representation not what was persisted in the database,
   and most significant clients do not yet rely on the in-memory representation.