Fix bump effect overwriting player's step_anime forever CU-860re8wrz

MR Description

People could no longer set the step_anime for the player because of the bump procedure. Now they should be able to do it.

Tests to realize

• Bump into walls when player step_anime is false. Player step_anime should remain false once you're done bumping into the wall.
• Bump into walls when player step_anime is true. Player step_anime should remain true once you're done bumping into the wall.
• Do additional tests with Surf.