Fix a case where it was possible to create a delete marker when only
pending object was present.
The solution is not pretty, but we have a TODO note to cleanup the
precommit code, so let's fix the bug first.
Change-Id: I0ab66d745443c9dccbf29ef32389dd912b2d9caf
This condenses the precommit constraint into a single function, which
allows to cleanup a bunch of logic elsewhere. Also, avoid delete in the
first place when we are not allowed to remove the uncommited object.
This also fixes submitting the metrics and now it submits the correct
metrics.
Change-Id: If91dfa3b19bce5b24ff2a19d7c34b57a200db1dd
