$ git clone -n https://gitee.com/wency_cn/libisofs.git /var/lib/mock/dist-an23-build-492362-74553/root/chroot_tmpdir/scmroot/libisofs
Cloning into '/var/lib/mock/dist-an23-build-492362-74553/root/chroot_tmpdir/scmroot/libisofs'...
$ git fetch origin a940c3792522c02de66571187a6a0aa1c0901d29:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/libisofs
 * [new ref]         a940c3792522c02de66571187a6a0aa1c0901d29 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a940c37 Update code from upstream