Jason Tedor d06f43c706 Tighten sequence number assertion
We have an assertion in the engine regarding the initial state of a
sequence number before an indexing operation. This assertion is too
loose, it catches operations during recovery from old indices where
sequence numbers do not even exist. This commit tightens these
assertions to not catch such operations and enables us to reenable some
tests.

Relates #21509
2016-11-11 16:49:13 -05:00
..
2016-11-11 16:49:13 -05:00