The bug

When a player passes over soul soil fire (blue flames) the player is ignited with standard (orange / yellow) flames.

See attached screen shot.

How to reproduce:

In the Nether (tested in creative mode),

1. Ignite soul soil blocks with a flint and steel
2. As a player walk into the ignited soul soil fire
3. Observe the player's own flames (showing in Red/Orange)

Expected Results:

Expected the player to also show burning with blue flames