$ git clone -n https://src.fedoraproject.org/rpms/mailman3-fedmsg-plugin.git /var/lib/mock/f40-build-2296815-56416/root/chroot_tmpdir/scmroot/mailman3-fedmsg-plugin
Cloning into '/var/lib/mock/f40-build-2296815-56416/root/chroot_tmpdir/scmroot/mailman3-fedmsg-plugin'...
$ git fetch origin 1374dac9c26ab99854f41fb3fa5e8e83c65f8331:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mailman3-fedmsg-plugin
 * [new ref]         1374dac9c26ab99854f41fb3fa5e8e83c65f8331 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1374dac Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild