$ git clone -n https://src.fedoraproject.org/rpms/chntpw.git /var/lib/mock/f41-build-1046791-19100/root/chroot_tmpdir/scmroot/chntpw
Cloning into '/var/lib/mock/f41-build-1046791-19100/root/chroot_tmpdir/scmroot/chntpw'...
$ git fetch origin 31075a04ab3da5206e24165f9e34a3e593a5081a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/chntpw
 * [new ref]         31075a04ab3da5206e24165f9e34a3e593a5081a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 31075a0 Eliminate use of obsolete %patchN syntax (#2283636)