[beta] The 'w'alk command does not stop at deep shafts

[syntaxaire]

Steps to reproduce:

1. Wish for ‘deep shaft’
2. Back up in a straight line and press 'w', then the direction the shaft is in

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[syntaxaire]

The walk command will also not stop at armed mines that the player knows about (from a miner, not the player)

[chaos]

Will be fixed in beta 200.22 patch.

[chaos]

(both issues)