$ git clone -n https://gitee.com/yangcheng1203/libxml2.git /var/lib/mock/dist-an23.2-build-444560-73235/root/chroot_tmpdir/scmroot/libxml2
Cloning into '/var/lib/mock/dist-an23.2-build-444560-73235/root/chroot_tmpdir/scmroot/libxml2'...
$ git fetch origin 6bc9690b0de0df19191518f6989f34d6e84fd059:KOJI_FETCH_HEAD
From https://gitee.com/yangcheng1203/libxml2
 * [new ref]         6bc9690b0de0df19191518f6989f34d6e84fd059 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6bc9690 add patch to fix CVE-2025-6021