$ git clone -n https://gitee.com/gcdota930915/gdb.git /var/lib/mock/dist-an8.7-build-172427-58968/root/chroot_tmpdir/scmroot/gdb
Cloning into '/var/lib/mock/dist-an8.7-build-172427-58968/root/chroot_tmpdir/scmroot/gdb'...
$ git reset --hard origin/a8-poc
HEAD is now at b34d645 update to gdb-10.2