tree 6febc90cea363cfadcf827f2b2999fa3f1e39adb
parent 669a7676c77fe83aba1ca980566767df86a71915
author Ivan Frade <ifrade@google.com> 1787255040 -0700
committer ifrade <ifrade@google.com> 1787613743 -0700
change-id omyxqwrxpkzqssyovzowuptxunxpzuqv

TreeRevFilter: Enable merge commit BF serving

We currently are generating Bloom Filters for merge commits
via CommitGraphWriter, but they are not being served due to the lack of
tests confirming their functionality. Serving them in TreeRevFilter
requires a way to rewrite their parent list in the event that BF returns
false.

Adding parent rewrite when BF returns false on a merge commit. Adding
additional monitoring related to serving BF for merge commits so their
functionality matches the default treeWalk code path behavior.

Change-Id: I1250d0cf2a670966a247821cd715292fe7701b66