PD: Positive offset on a binder shouldn't turn holes into squares

Fixes issue 18776

src/Mod/Part/App/TopoShapeExpansion.cpp

@@ -2697,8 +2697,15 @@ TopoShape& TopoShape::makeElementOffset2D(const TopoShape& shape,
     if (shape.getShape().ShapeType() == TopAbs_COMPOUND) {
         if (!intersection) {
             // simply recursively process the children, independently
-            expandCompound(shape, shapesToProcess);
-            outputPolicy = SingleShapeCompoundCreationPolicy::forceCompound;
+            for(TopoDS_Iterator it(shape.getShape()); it.More() ; it.Next()) {
+                shapesToReturn.push_back(TopoShape(it.Value()).makeElementOffset2D(offset,
+                                                                                   joinType,
+                                                                                   fill,
+                                                                                   allowOpenResult,
+                                                                                   intersection,
+                                                                                   op));
+                outputPolicy = SingleShapeCompoundCreationPolicy::forceCompound;
+            }
         }
         else {
             // collect non-compounds from this compound for collective offset. Process other shapes