Deleting a halt then viewing halt details causes client crash

[Matthew]

Steps to reproduce

1. Run today's client (2020-12-20, #f5c7274)
2. Open an existing savegame
3. Find a halt (Halt A) with only one direct connection (to Halt B)
4. Delete Halt B
5. Open Halt A's Details window and click on the Direct routes tab
6. Client will crash
The crashes will repeat whenever steps 5-6 are repeated. I speculate that this will continue until the Path Explorer refreshes the relevant route

Backtrace:

Full backtrace here

Probable cause:
The Direct routes tab is trying to display the name of a halt that no longer exists

[jamespetts]

Thank you for the report - I believe that I have now fixed this. I should be grateful if you could re-test with to-morrow's nightly build.

[Matthew]

This bug was not fixed in December, but it is fixed now. Thank you to James, Freddy, and Ranran, who I think were all involved.