$ git clone -n https://gitee.com/geliwei/libxml2.git /var/lib/mock/dist-an23-build-553113-89038/root/chroot_tmpdir/scmroot/libxml2
Cloning into '/var/lib/mock/dist-an23-build-553113-89038/root/chroot_tmpdir/scmroot/libxml2'...
$ git fetch origin c1b51389890dd212905ad80aa5d32c0f38231dd4:KOJI_FETCH_HEAD
From https://gitee.com/geliwei/libxml2
 * [new ref]         c1b51389890dd212905ad80aa5d32c0f38231dd4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c1b5138 fix: CVE-2023-45322 libxml2 use-after-free in xmlUnlinkNode