
With the new unmaintained process [1], branches are being tagged with EOM before being removed. This behaviour breaks reno, making it struggle to find respective origin and leads to releasenotes job failure. In order to overcome the issue we add eom tag to the list of expected ones when we can not find the refferenced branch. With that, EOL tag will have prescedence over EOM one. [1] https://governance.openstack.org/tc/resolutions/20230724-unmaintained-branches.html Change-Id: Ic641af5aa65add9751b49fb47691a98f80a7c5a8