Miners get stuck while mining outcrops

Title: Miners get stuck while mining outcrops

Summary: Hearthling miners will mine out onto an outcrop in a way that makes it so that are then trapped on the outcrop.

Steps to reproduce:

  1. Find a cliff that is fairly high, like 9-10 blocks high
  2. Mine a 4x12 section at the bottom of the cliff
  3. Climb to the top of the cliff and mine some 4x4 sections until you get that 1-2 block layer that extends horizontally from the cliff
  4. Mine the horizontal layer

Expected Results:
blocks are mined and the mining hearthling returns safely

Actual Results:
Occasionally the hearthling doing the mining will mine out onto a block and then turn around and mine behind them, leaving them stuck until someone comes with a ladder.


Versions and Mods:
Alpha 17, release-610.
No mods.

System Information: