$ git clone -n https://src.fedoraproject.org/rpms/xqc.git /var/lib/mock/f45-build-39117-732/root/chroot_tmpdir/scmroot/xqc
Cloning into '/var/lib/mock/f45-build-39117-732/root/chroot_tmpdir/scmroot/xqc'...
$ git fetch origin 081dc48a194cbe9fdf9138b008559403b978cef5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xqc
 * [new ref]         081dc48a194cbe9fdf9138b008559403b978cef5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 081dc48 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild