build with 3.3

when a change is abandoned, we get two 'ref-updated' event on the
change's meta ref, and  when a change is merged, we get four
'ref-updated' event on the change's meta ref. So, update the
corresponding tests accordingly.

Change-Id: I4a2b65b2342451722dda78e109f8f192020c1ce7
3 files changed