$ git clone -n https://gitee.com/src-opencloudos-rpms/gdb.git /var/lib/mock/dist-oc9-build-228603-81213/root/chroot_tmpdir/scmroot/gdb
Cloning into '/var/lib/mock/dist-oc9-build-228603-81213/root/chroot_tmpdir/scmroot/gdb'...
$ git fetch origin a864d38735c8af5c5a13b7cbee5c9d5d22401c71:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/gdb
 * [new ref]         a864d38735c8af5c5a13b7cbee5c9d5d22401c71 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a864d38 import gdb-13.2-9.tl4