$ git clone -n https://src.fedoraproject.org/rpms/status-report.git /var/lib/mock/f38-build-side-42-init-devel-1289220-30674/root/chroot_tmpdir/scmroot/status-report
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1289220-30674/root/chroot_tmpdir/scmroot/status-report'...
$ git fetch origin 8d8257e102e9c164559bfec1554f21062fd60926:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/status-report
 * [new ref]         8d8257e102e9c164559bfec1554f21062fd60926 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8d8257e Initial setup of the repo