Navigation regression from 4.4-dev6 to 4.4-dev7 allows for climbing heights which should not be possible

[SmialyKot]

Tested versions

Reproducible in 4.4.dev-7
Not reproducible in 4.4.dev-6

System information

Godot v4.4.dev7.mono - CachyOS Linux, Wayland display driver, Single-window, 1 monitor - Vulkan (Forward+) - dedicated AMD Radeon RX 7900 XTX (RADV NAVI31) - AMD Ryzen 9 7950X 16-Core Processor (32 threads)

Issue description

There seems to be a regression in path finding which allows the character to "walk in the air" to reach high ground position which should not be reachable to him based on navigation settings.

Steps to reproduce

1. Run MRP on 4.4.dev-6
2. Click on the high ground to move - character cannot get on the wall
3. Run MRP again on 4.4.dev-7
4. Repeat the experiment - character walks in the air

Screencast_20241221_215808.webm

Screencast_20241221_215940.webm

Minimal reproduction project (MRP)

Click-To-Move-Godot-4-Tutorial.zip

[smix8]

Likely from #100129 but it does not happen for me with PR #100497 that is a followup.

Although I though all the "just-fixes" were added with PR #100587 but maybe not.

[SmialyKot]

I can confirm that issue is fixed in #100497