$ git clone -n https://gitee.com/zhuhong_bo/gcc /var/lib/mock/dist-an7-build-423661-72502/root/chroot_tmpdir/scmroot/gcc
Cloning into '/var/lib/mock/dist-an7-build-423661-72502/root/chroot_tmpdir/scmroot/gcc'...
$ git fetch origin a7:KOJI_FETCH_HEAD
From https://gitee.com/zhuhong_bo/gcc
 * [new branch]      a7         -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7ffc431 Rebrand for Anolis OS