Merge "libsnapshot: Verify the ordering of COW operations." into main am: 1db90d0aac am: 5eb2c1e898

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2668076

Change-Id: Id4ac478e73957d6667619fea19ddec85a37bdf0b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>