OSC: Allow feature branch merge commits in gerrit
OSC has feature/osc4 branch.
We need to merge branches over time.
Reference:
+[access "refs/for/refs/*"]
+pushMerge = group python-openstackclient-core
+
[access "refs/heads/*"]
abandon = group python-openstackclient-core
label-Code-Review = -2..+2 group python-openstackclient-core
