$ git clone -n https://src.fedoraproject.org/rpms/kmbox.git /var/lib/mock/f40-build-2399486-60549/root/chroot_tmpdir/scmroot/kmbox
Cloning into '/var/lib/mock/f40-build-2399486-60549/root/chroot_tmpdir/scmroot/kmbox'...
$ git fetch origin dd6da9f6b79068de5dea14b02317faed98a95f31:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kmbox
 * [new ref]         dd6da9f6b79068de5dea14b02317faed98a95f31 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dd6da9f 24.01.95