$ git clone -n https://gitee.com/opencloudos-stream/dcmtk.git /var/lib/mock/dist-ocs23-epol9-build-151291-9983/root/chroot_tmpdir/scmroot/dcmtk
Cloning into '/var/lib/mock/dist-ocs23-epol9-build-151291-9983/root/chroot_tmpdir/scmroot/dcmtk'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/dcmtk
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1ee7535 package init