$ git clone -n https://gitee.com/src-anolis-os/gdb /var/lib/mock/dist-an8.9-build-381096-71827/root/chroot_tmpdir/scmroot/gdb
Cloning into '/var/lib/mock/dist-an8.9-build-381096-71827/root/chroot_tmpdir/scmroot/gdb'...
$ git fetch origin a8:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-os/gdb
 * [new branch]      a8         -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 435395d Dynamically get max user XSTATE buffer size.