ENH: coupledPolyPatch: allowed sheared cyclic

src/OpenFOAM/meshes/polyMesh/polyPatches/basic/coupled/coupledPolyPatch.C

@@ -313,7 +313,7 @@ void Foam::coupledPolyPatch::calcTransformTensors
             forwardT_.setSize(0);
             reverseT_.setSize(0);
 
-            separation_ = (nf&(Cr - Cf))*nf;
+            separation_ = Cr - Cf;
 
             collocated_.setSize(separation_.size());