$ git clone -n https://gitee.com/mgb01105731/dtc.git /var/lib/mock/dist-an23.2-build-417718-72829/root/chroot_tmpdir/scmroot/dtc
Cloning into '/var/lib/mock/dist-an23.2-build-417718-72829/root/chroot_tmpdir/scmroot/dtc'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/dtc
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ce4b139 Refer to CentOS Stream dtc-1.7.0-1(mrezanin@redhat.com)