$ git clone -n https://gitee.com/wz002/libxml2.git /var/lib/mock/dist-an8.9-build-414434-72835/root/chroot_tmpdir/scmroot/libxml2
Cloning into '/var/lib/mock/dist-an8.9-build-414434-72835/root/chroot_tmpdir/scmroot/libxml2'...
$ git fetch origin 8902c0c4d71638aa8b1cc18197fae0f72d34d199:KOJI_FETCH_HEAD
From https://gitee.com/wz002/libxml2
 * [new ref]         8902c0c4d71638aa8b1cc18197fae0f72d34d199 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8902c0c [CVE] fix for CVE-2022-49043