$ git clone -n https://src.fedoraproject.org/rpms/pavucontrol-qt.git /var/lib/mock/f45-build-21440-584/root/chroot_tmpdir/scmroot/pavucontrol-qt
Cloning into '/var/lib/mock/f45-build-21440-584/root/chroot_tmpdir/scmroot/pavucontrol-qt'...
$ git fetch origin 6cd9d5f1c58bf71ea5e57d9301413ed139bc2b86:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pavucontrol-qt
 * [new ref]         6cd9d5f1c58bf71ea5e57d9301413ed139bc2b86 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6cd9d5f Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild