$ git clone -n https://src.fedoraproject.org/rpms/pamtester.git /var/lib/mock/f45-build-21340-583/root/chroot_tmpdir/scmroot/pamtester
Cloning into '/var/lib/mock/f45-build-21340-583/root/chroot_tmpdir/scmroot/pamtester'...
$ git fetch origin a384391ef481732d62c5e7f30770d58652d459eb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pamtester
 * [new ref]         a384391ef481732d62c5e7f30770d58652d459eb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a384391 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild