$ git clone -n https://gitee.com/mgb01105731/gnome-initial-setup.git /var/lib/mock/dist-an23-build-284359-64755/root/chroot_tmpdir/scmroot/gnome-initial-setup
Cloning into '/var/lib/mock/dist-an23-build-284359-64755/root/chroot_tmpdir/scmroot/gnome-initial-setup'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/gnome-initial-setup
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6160cef init upstream from version 44.0