[Bug]: Tux takes damage together with badguy that gets squashed if hit from a certain angle

[ForcedToTest]

SuperTux Version

v.0.6.3

System Information

Windows 11 64bit

Expected Behavior

Jumping on a enemy to kill it.

Actual Behavior

If performed from a certain angle (from the side), the enemy dies but you also take damage.

Steps To Reproduce Actual Behavior

1. Start the game.
2. Load in to a level.
3. Find a enemy and jump on it landing close to the edge of the enemy hit boxes top part.

Additional Information

No response

Guidelines For Reporting Issues

• [X] I have read https://github.com/SuperTux/supertux/blob/master/CONTRIBUTING.md#bug-reports.
• [X] I have verified this isn't an issue that's already been reported.
• [X] I have verified this isn't a discussion, or an issue about a crash or a feature request, but rather an actual bug ─ that is, the game did something not intended.
• [X] I have verified this issue is not about wrong translations (use Transifex for those), or anything unsupported (e.g. third-party add-ons).
• [X] In this report, I have only included details about one (1) bug.
• [X] If I make a mistake while submitting this report, I agree to use the "Edit" feature to correct it, instead of closing this issue and opening a new one.