$ git clone -n https://src.fedoraproject.org/rpms/rust-libxml.git /var/lib/mock/f39-build-1493894-34542/root/chroot_tmpdir/scmroot/rust-libxml
Cloning into '/var/lib/mock/f39-build-1493894-34542/root/chroot_tmpdir/scmroot/rust-libxml'...
$ git fetch origin aa8f5f050a151ffdcb66dbc724630951421798ee:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-libxml
 * [new ref]         aa8f5f050a151ffdcb66dbc724630951421798ee -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at aa8f5f0 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild