[automerge] SF: don't latch unsignaled if there are multiple apply tokens 2p: e1bfaacc3c

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

Bug: 220907055
Change-Id: Ie18226f1db8f463406946a0e9bafde740bf7d603