$ git clone -n https://gitee.com/kanghou-silver/gdb.git /var/lib/mock/dist-an23-build-456579-73652/root/chroot_tmpdir/scmroot/gdb
Cloning into '/var/lib/mock/dist-an23-build-456579-73652/root/chroot_tmpdir/scmroot/gdb'...
$ git fetch origin 8fa761634a9b92f11d6803277de4cfeaf4f98b85:KOJI_FETCH_HEAD
From https://gitee.com/kanghou-silver/gdb
 * [new ref]         8fa761634a9b92f11d6803277de4cfeaf4f98b85 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8fa7616 add target support for sw64