$ git clone -n https://gitee.com/ocs-bot/gimp.git /var/lib/mock/dist-ocs23-build-119222-8457/root/chroot_tmpdir/scmroot/gimp
Cloning into '/var/lib/mock/dist-ocs23-build-119222-8457/root/chroot_tmpdir/scmroot/gimp'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/ocs-bot/gimp
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d261d33 small fix