Fixing overriding of schematics

SchematicSystem_Main/src/de/steamwar/schematicsystem/commands/SchematicCommand.java

@@ -179,7 +179,7 @@ public class SchematicCommand implements CommandExecutor {
         }
 
         boolean newSchem = false;
-        if(schematic == null || schematic.getSchemOwner() == SteamwarUser.get(player.getUniqueId()).getId()){
+        if(schematic == null || schematic.getSchemOwner() != SteamwarUser.get(player.getUniqueId()).getId()){
             newSchem = true;
             Schematic.createSchem(args[1], player.getUniqueId(), "", SchematicType.Normal);
             schematic = Schematic.getSchemFromDB(args[1], player.getUniqueId());