$ git clone -n https://src.fedoraproject.org/rpms/gstreamer-plugins-fc.git /var/lib/mock/f41-build-1028413-18355/root/chroot_tmpdir/scmroot/gstreamer-plugins-fc
Cloning into '/var/lib/mock/f41-build-1028413-18355/root/chroot_tmpdir/scmroot/gstreamer-plugins-fc'...
$ git fetch origin f001c177fa65dd0328d56754626f8af25fa452c1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gstreamer-plugins-fc
 * [new ref]         f001c177fa65dd0328d56754626f8af25fa452c1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f001c17 Eliminate use of obsolete %patchN syntax (#2283636)