tree d266c12ec1c245cafa5a17ee197c1742137ca6b6
parent 25f3a31ec0cc11b3b7badba33f6817300897b489
author Ian Wienand <iwienand@redhat.com> 1510200298 +1100
committer Ian Wienand <iwienand@redhat.com> 1510546755 +1100

Make enqueue-ref <new|old>rev optional

As described in the documentation in
Ibd7ee306bc461d1597c9c8febcaad89a48b9ff96 the new/old rev arguments
aren't required in all situations.  For example when triggering a
periodic job and pretending to be the timer event, you just need the
refs/head/branch.  For a release/tag replay, I believe you only need
the newref, so setting them both to zero by default triggers the check
incorrectly.

Thus we set the arguments to None intially and only if they are
explicitly set do we check they're not the same.  If they're unset by
the user, we just set them to zero for the rpc calls.

Change-Id: I8125010efcf8d26dc3a99c87fe2c945314072b72