$ git clone -n https://src.fedoraproject.org/rpms/lxappearance-obconf.git /var/lib/mock/f39-build-1566328-37588/root/chroot_tmpdir/scmroot/lxappearance-obconf
Cloning into '/var/lib/mock/f39-build-1566328-37588/root/chroot_tmpdir/scmroot/lxappearance-obconf'...
$ git fetch origin 7219a560762102a88b77331424ef536d7183581a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lxappearance-obconf
 * [new ref]         7219a560762102a88b77331424ef536d7183581a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7219a56 fix changelog