$ git clone -n https://src.fedoraproject.org/rpms/mate-applets.git /var/lib/mock/f39-build-1596539-38383/root/chroot_tmpdir/scmroot/mate-applets
Cloning into '/var/lib/mock/f39-build-1596539-38383/root/chroot_tmpdir/scmroot/mate-applets'...
$ git fetch origin 6d1570b9a886ca18e6ce993a754523286b6a829c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mate-applets
 * [new ref]         6d1570b9a886ca18e6ce993a754523286b6a829c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6d1570b fix linking gtksourceview, rhbz (#2241946)