$ git clone -n https://src.fedoraproject.org/rpms/smb4k.git /var/lib/mock/f40-build-2170795-51031/root/chroot_tmpdir/scmroot/smb4k
Cloning into '/var/lib/mock/f40-build-2170795-51031/root/chroot_tmpdir/scmroot/smb4k'...
$ git fetch origin bb00fed3cccabc5190b1c0a87013f52ac40a9a41:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/smb4k
 * [new ref]         bb00fed3cccabc5190b1c0a87013f52ac40a9a41 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bb00fed Update to 3.2.4 (#2243300)