$ git clone -n https://gitee.com/uestc-cheng/libxml2_2.git /var/lib/mock/dist-an8.8-build-299714-65890/root/chroot_tmpdir/scmroot/libxml2_2
Cloning into '/var/lib/mock/dist-an8.8-build-299714-65890/root/chroot_tmpdir/scmroot/libxml2_2'...
$ git fetch origin 874930c9c332213e7702c5a5f4aacbbfc09f95ec:KOJI_FETCH_HEAD
From https://gitee.com/uestc-cheng/libxml2_2
 * [new ref]         874930c9c332213e7702c5a5f4aacbbfc09f95ec -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 874930c CVE-2023-29469