Questionable collision data for Water Splash & Helix on Wooden Roller Coaster

[Ryder17z]

Version: 0297d0b

I've tried intersecting the water splash track piece with helixes, both large and small from:

• Junior RC
• Mine Train Coaster
• Twister Roller Coaster
• Another Wooden Roller coaster

All of the four above does not permit what's in the screenshots.

Example Wood Coaster Wooden Roller Coaster 1hmmm.zip

[Ryder17z]

Appears to be present in vanilla too.

[galfisk]

All helixes are wonky. Try this:

1. Open any flat park
2. Start building any coaster that has helixes, just below ground (I've tried wooden, junior, mini, mine)
3. Build an up-helix, big or small. It can be built even though the other end ends up poking out of the ground.
4. If you build a tunnel opening at the other end, you'll get an opening halfway out of the ground, with ground surface halway up inside it.
   Also present in develop-cffb467. Not present in RCT1 (GOG).