$ git clone -n https://src.fedoraproject.org/rpms/povray.git /var/lib/mock/f41-build-756814-13422/root/chroot_tmpdir/scmroot/povray
Cloning into '/var/lib/mock/f41-build-756814-13422/root/chroot_tmpdir/scmroot/povray'...
$ git fetch origin 7e4afc63202293328264192571d72b10c4cb1df9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/povray
 * [new ref]         7e4afc63202293328264192571d72b10c4cb1df9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7e4afc6 Eliminate use of obsolete %patchN syntax (#2283636)