Check_resort: return RESORT_GLOBAL as default (#3617)

Fixes #3616 

Description of changes:
- Return GLOBAL as a default.

(Edit: Sorry, wrong issue referenced.)

src/core/cells.cpp

@@ -191,7 +191,7 @@ unsigned topology_check_resort(int cs, unsigned local_resort) {
     return boost::mpi::all_reduce(comm_cart, local_resort,
                                   std::bit_or<unsigned>());
   default:
-    return true;
+    return Cells::Resort::RESORT_GLOBAL;
   }
 }