Can't render Tilemap with negative x/y

[ratkingsminion]

I have a tilemap like this:

tilemap = new Tilemap("tiles", 32, 32,
    [   [ 1, 1, 0, 1, 1, 0 ],
        [ 1, 0, 0, 0, 1, 0 ],
        [ 1, 0, 0, 0, 1, 0 ],
        [ 1, 1, 1, 1, 1, 0 ],
        [ 0, 0, 0, 0, 0, 0 ]
    ], null, true);

When I render it like this

tilemap.render(painter, Std.int(x), Std.int(y), 800, 600);

I get an error as soon as x and y become negative. As I set the tilemap with repeat = true, this doesn't make much sense in my opinion.

[RobDangerous]

I agree, but I can not reproduce the error. Can you send me a complete example?

[ratkingsminion]

Here is the code: http://dl.dropboxusercontent.com/u/10650964/_stuff/kha/tilemaptest/Snakhe.hx
Here is the tiles.png: http://dl.dropboxusercontent.com/u/10650964/_stuff/kha/tilemaptest/tiles.png

When I move left or up, the program will fail at some point, because tilemapPos.x or tilemapPos.y becomes negative. Then, in Tilemap.hx, line 28

tileset.render(painter, map[x % levelWidth][y % levelHeight], x * tileset.TILE_WIDTH, y * tileset.TILE_HEIGHT);

has a problem because it tries to access map[][] with negative values, as far as I understand it.

[RobDangerous]

Got it. Didn't happen in all backends.
Thanks for the help!