$ git clone -n https://src.fedoraproject.org/rpms/mate-media.git /var/lib/mock/f40-build-794305-139514/root/chroot_tmpdir/scmroot/mate-media
Cloning into '/var/lib/mock/f40-build-794305-139514/root/chroot_tmpdir/scmroot/mate-media'...
$ git fetch origin c6462ce4258697e86e1ddc9843624e558b60166a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mate-media
 * [new ref]         c6462ce4258697e86e1ddc9843624e558b60166a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c6462ce update to 1.28.1