$ git clone -n https://src.fedoraproject.org/rpms/R-ncdf4.git /var/lib/mock/f40-build-2321815-58611/root/chroot_tmpdir/scmroot/R-ncdf4
Cloning into '/var/lib/mock/f40-build-2321815-58611/root/chroot_tmpdir/scmroot/R-ncdf4'...
$ git fetch origin 31bba66a153e06ccdc6165fc48206ccc3105eccf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-ncdf4
 * [new ref]         31bba66a153e06ccdc6165fc48206ccc3105eccf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 31bba66 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild