$ git clone -n https://src.fedoraproject.org/rpms/udis86.git /var/lib/mock/f41-build-1042179-18998/root/chroot_tmpdir/scmroot/udis86
Cloning into '/var/lib/mock/f41-build-1042179-18998/root/chroot_tmpdir/scmroot/udis86'...
$ git fetch origin b82532d0e16d941f41c0e5ab082c05852143b7e1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/udis86
 * [new ref]         b82532d0e16d941f41c0e5ab082c05852143b7e1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b82532d Eliminate use of obsolete %patchN syntax (#2283636)