$ git clone -n https://src.fedoraproject.org/rpms/mxparser.git /var/lib/mock/f41-build-1022732-18093/root/chroot_tmpdir/scmroot/mxparser
Cloning into '/var/lib/mock/f41-build-1022732-18093/root/chroot_tmpdir/scmroot/mxparser'...
$ git fetch origin 4b8971cda682c155acc16bdb0e38869a8cdcd6df:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mxparser
 * [new ref]         4b8971cda682c155acc16bdb0e38869a8cdcd6df -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4b8971c Rebuilt for java-21-openjdk as system jdk