The game was released, correcting some bugs and errors in it. The game is basically the same game, but the 1.1 version corrects problems. The problems come from the actual game, and not the dumping. The first version is not a bad dump, it's a good dump of a game with bugs in it You should always play the 1.1 game, to avoid what ever problems existed in the 1.0 game.
The errors may be minor, random, or rare. But they existed and were considered bad enough for the game company to create a modified version of the game.
