Summary:
Changelog: [internal]
Name `shouldCancel` is misleading. It implies the commit is cancelled and doesn't happen.
`shouldYield` expresses the intent better, because the commit's changes do eventually reach mounting layer but the current commit is rather yielding to the next one.
Reviewed By: mdvacca
Differential Revision: D26126121
fbshipit-source-id: 18988f217cbc651f0010f6e2381682bdbaed8bd4