$ git clone -n https://gitee.com/zhuhong_bo/ca-certificates /var/lib/mock/dist-an7-els-build-397993-72217/root/chroot_tmpdir/scmroot/ca-certificates
Cloning into '/var/lib/mock/dist-an7-els-build-397993-72217/root/chroot_tmpdir/scmroot/ca-certificates'...
$ git fetch origin a7:KOJI_FETCH_HEAD
From https://gitee.com/zhuhong_bo/ca-certificates
 * [new branch]      a7         -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ee6bdb4 fix: bug 10859