Transactions - fix bug adding people to projects
Summary: Fixes T8264. Broken in D12929. Sweep all the applyBuiltin implementations and always break; rather than return
Test Plan: added myself to a project successfully (showed up as a member)
Reviewers: epriestley, chad
Subscribers: Korvin, epriestley
Maniphest Tasks: T6403, T8264
Differential Revision: https://secure.phabricator.com/D12940