$ git clone -n https://gitee.com/feng-weiyao/glibmm2.4.git /var/lib/mock/dist-ocs23-build-32921-1457/root/chroot_tmpdir/scmroot/glibmm2.4
Cloning into '/var/lib/mock/dist-ocs23-build-32921-1457/root/chroot_tmpdir/scmroot/glibmm2.4'...
$ git fetch origin HEAD:KOJI_FETCH_HEAD
From https://gitee.com/feng-weiyao/glibmm2.4
 * [new ref]                    -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1575907 update