$ git clone -n https://src.fedoraproject.org/rpms/matterbridge.git /var/lib/mock/f45-build-18114-508/root/chroot_tmpdir/scmroot/matterbridge
Cloning into '/var/lib/mock/f45-build-18114-508/root/chroot_tmpdir/scmroot/matterbridge'...
$ git fetch origin a4bdcf4aad44107c012f7a99c87dd858f12d7902:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/matterbridge
 * [new ref]         a4bdcf4aad44107c012f7a99c87dd858f12d7902 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a4bdcf4 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild