$ git clone -n https://src.fedoraproject.org/rpms/libmatheval.git /var/lib/mock/f42-build-883691-185422/root/chroot_tmpdir/scmroot/libmatheval
Cloning into '/var/lib/mock/f42-build-883691-185422/root/chroot_tmpdir/scmroot/libmatheval'...
$ git fetch origin 38b4b8dffe31a6d9420b0cdccd8eec8e489b0249:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libmatheval
 * [new ref]         38b4b8dffe31a6d9420b0cdccd8eec8e489b0249 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 38b4b8d Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild