$ git clone -n https://gitee.com/src-opencloudos-rpms/tcl.git /var/lib/mock/dist-oc9-build-48222-14592/root/chroot_tmpdir/scmroot/tcl
Cloning into '/var/lib/mock/dist-oc9-build-48222-14592/root/chroot_tmpdir/scmroot/tcl'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/tcl
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7e1e306 import tcl-8.6.12-4.tl4