$ git clone -n https://src.fedoraproject.org/rpms/ogre.git /var/lib/mock/f41-build-1022681-18093/root/chroot_tmpdir/scmroot/ogre
Cloning into '/var/lib/mock/f41-build-1022681-18093/root/chroot_tmpdir/scmroot/ogre'...
$ git fetch origin 09e9928cfdc56c198b9009b246e14edbc0870b4c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ogre
 * [new ref]         09e9928cfdc56c198b9009b246e14edbc0870b4c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 09e9928 Eliminate use of obsolete %patchN syntax (#2283636)