$ git clone -n https://src.fedoraproject.org/rpms/R-quantities.git /var/lib/mock/f41-build-821737-152620/root/chroot_tmpdir/scmroot/R-quantities
Cloning into '/var/lib/mock/f41-build-821737-152620/root/chroot_tmpdir/scmroot/R-quantities'...
$ git fetch origin 2755dbf7cba4ac2246feff7f24c77914c4e197fa:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-quantities
 * [new ref]         2755dbf7cba4ac2246feff7f24c77914c4e197fa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2755dbf Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild