$ git clone -n https://src.fedoraproject.org/rpms/mxparser.git /var/lib/mock/f38-build-side-42-init-devel-1261816-30642/root/chroot_tmpdir/scmroot/mxparser
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1261816-30642/root/chroot_tmpdir/scmroot/mxparser'...
$ git fetch origin c6c848f2d7900f6412ab05cc1d631a653da7cd64:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mxparser
 * [new ref]         c6c848f2d7900f6412ab05cc1d631a653da7cd64 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c6c848f Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild