$ git clone -n https://src.fedoraproject.org/rpms/R-webfakes.git /var/lib/mock/f40-build-2326350-58832/root/chroot_tmpdir/scmroot/R-webfakes
Cloning into '/var/lib/mock/f40-build-2326350-58832/root/chroot_tmpdir/scmroot/R-webfakes'...
$ git fetch origin 5ad21f8c1bb39b6df363b5af673c12e5517bbe3f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-webfakes
 * [new ref]         5ad21f8c1bb39b6df363b5af673c12e5517bbe3f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5ad21f8 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild