$ git clone -n https://gitee.com/yangcheng1203/libxml2.git /var/lib/mock/dist-an23-build-444559-73188/root/chroot_tmpdir/scmroot/libxml2
Cloning into '/var/lib/mock/dist-an23-build-444559-73188/root/chroot_tmpdir/scmroot/libxml2'...
$ git fetch origin 7ffc755bd6cff0b3eb3d707e47a9503b9d8ac7f6:KOJI_FETCH_HEAD
From https://gitee.com/yangcheng1203/libxml2
 * [new ref]         7ffc755bd6cff0b3eb3d707e47a9503b9d8ac7f6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7ffc755 add patch to fix CVE-2025-6021