Allow ^ mask to be used between blocks that may have different properties, only keeping the shared properties

Fixes #1092

worldedit-core/src/main/java/com/sk89q/worldedit/function/pattern/StateApplyingPattern.java

@@ -23,6 +23,7 @@ import com.google.common.collect.Maps;
 import com.sk89q.worldedit.extent.Extent;
 import com.sk89q.worldedit.math.BlockVector3;
 import com.sk89q.worldedit.registry.state.Property;
+import com.sk89q.worldedit.registry.state.PropertyKey;
 import com.sk89q.worldedit.world.block.BaseBlock;
 import com.sk89q.worldedit.world.block.BlockState;
 import com.sk89q.worldedit.world.block.BlockType;
@@ -47,7 +48,9 @@ public class StateApplyingPattern extends AbstractExtentPattern {
         BlockState block = getExtent().getBlock(position);
         for (Entry<Property<Object>, Object> entry : cache
                 .computeIfAbsent(block.getBlockType(), (b -> resolveProperties(states, b))).entrySet()) {
-            block = block.with(entry.getKey(), entry.getValue());
+            if (block.getBlockType().hasProperty(entry.getKey().getKey())) {
+                block = block.with(entry.getKey(), entry.getValue());
+            }
         }
         return block.toBaseBlock();
     }

worldedit-core/src/main/java/com/sk89q/worldedit/function/pattern/TypeApplyingPattern.java

@@ -41,12 +41,7 @@ public class TypeApplyingPattern extends AbstractExtentPattern {
     @Override
     public BaseBlock apply(BlockVector3 position) {
         BlockState oldBlock = getExtent().getBlock(position);
-        BlockState newBlock = blockState;
-        for (Entry<Property<?>, Object> entry : oldBlock.getStates().entrySet()) {
-            @SuppressWarnings("unchecked")
-            Property<Object> prop = (Property<Object>) entry.getKey();
-            newBlock = newBlock.with(prop, entry.getValue());
-        }
+        BlockState newBlock = blockState.withProperties(oldBlock);
         return newBlock.toBaseBlock();
     }
 }

worldedit-core/src/main/java/com/sk89q/worldedit/world/block/BlockState.java

@@ -308,7 +308,7 @@ public class BlockState implements BlockStateHolder<BlockState>, Pattern {
                 newState = newState.with(key, other.getState(key));
             }
         }
-        return this;
+        return newState;
     }
 
     @Override