Hotfix StairsAttribute

Signed-off-by: yoyosource <yoyosource@nidido.de>

BauSystem_Main/src/de/steamwar/bausystem/features/attributescopy/impl/type/StairsAttribute.java

@@ -38,13 +38,13 @@ public class StairsAttribute implements BlockAttribute<Stairs> {
 
     @Override
     public void copy(List<String> attributes, Stairs blockData) {
-        attributes.add(attribute + blockData.getShape().name());
+        attributes.add(attribute + blockData.getShape().name().toLowerCase());
     }
 
     @Override
     public void paste(Set<String> attributes, Stairs blockData) {
         for (Stairs.Shape shape : Stairs.Shape.values()) {
-            if (attributes.contains(attribute + shape.name())) {
+            if (attributes.contains(attribute + shape.name().toLowerCase())) {
                 blockData.setShape(shape);
                 return;
             }