$ git clone -n https://gitee.com/wency_cn/pycairo_1764789992.git /var/lib/mock/dist-an23-build-491150-74530/root/chroot_tmpdir/scmroot/pycairo_1764789992
Cloning into '/var/lib/mock/dist-an23-build-491150-74530/root/chroot_tmpdir/scmroot/pycairo_1764789992'...
$ git fetch origin bb3b61b99c607badad2e9c17f82e12bf9737aea3:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/pycairo_1764789992
 * [new ref]         bb3b61b99c607badad2e9c17f82e12bf9737aea3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bb3b61b Update code from upstream