[automerge] SF: don't latch unsignaled if there are multiple apply tokens 2p:...

[automerge] SF: don't latch unsignaled if there are multiple apply tokens 2p: e1bfaacc 2p: d3c37ba8

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/16984229

Bug: 220907055
Change-Id: I0efbc840864d99a00afd07010e93007a33f93084