Fix queryRel returning data value for block at absolute coordinates (#2645)

* Replace toWorld with toWorldRel for relative data

* re-add accidentally deleted annotation

worldedit-core/src/main/java/com/sk89q/worldedit/regions/shape/WorldEditExpressionEnvironment.java

@@ -85,7 +85,7 @@ public class WorldEditExpressionEnvironment implements ExpressionEnvironment {
     @SuppressWarnings("deprecation")
     @Override
     public int getBlockDataRel(double x, double y, double z) {
-        return extent.getBlock(toWorld(x, y, z)).getBlockType().getLegacyCombinedId() & 0xF;
+        return extent.getBlock(toWorldRel(x, y, z).toBlockPoint()).getBlockType().getLegacyCombinedId() & 0xF;
     }
 
     //FAWE start