Tiles may be displayed out-of-order if animations are not defined in numerical order #3535

Describe the bug If the tiles for animation in a tiles XML are in numerical order, the tiles in the tileset preview may render out of order. However, they behave correctly in maps. (This came about because we had an external tool producing XML for complex animations, and copied two separate animations into the same file.)

To Reproduce

1. Swap the order of two <tile id="..."><animation>....</animation></tile> sequences in a tsx file.

Expected behavior Tiles display in normal, ascending order.

Media

Specifications: OS: MacOS 12 Tiled Version: 1.9.2