vecdraw labels keep growing in size if moving near ground.

[Dunbaratu]

It looks like the fix in PR #2799 didn't entirely fix everything. The following scenario is still screwed up:

If you are on Kerbin, within 150m of the ground (or within 150m of sea level if over water), and you are moving, the vecdraw labels keep growing in size. They snap back to normal when you get above 150m, or if you stop moving. The game is doing something weird with the camera position when near the ground, I assume, as the camera position is used to calculate how big the label should be.

I suspect: When near terrain (or sea) polygons, the game is not locking the camera and world coords because that would mean having to move terrain polygons with colliders. Once the terrain is far enough away, then it becomes okay to move it around because terrain no longer needs to be "real" at that height. (Thus also why ground objects stay "packed" at that height - there's no real terrain for them to rest on.)