Standing on air after bumping into wall beside falling tile

[TCH68k]

Steps to reproduce:

1. Put a falling tile beside a wall.
2. Stand right beside the tile.
3. Jump into the wall.
4. Press up quickly.
5. The Prince will stand on the air and jump.

Illustration video: http://oscomp.hu/depot/sdlpop_standing_on_air_after_bumping_into_wall.mkv
As shown in the video, this is not the same glitch as the crouch-stand up bug, since i turned on the fixes before doing the glitch.

Note: The same happens in the original game, but i still think, this should be fixed.