Not sure how this one got introduced but I confirmed it doesn't happen on 4.3.12
If you walk on the tile that normally contains hidden kasuto on the east (61, 51) with hidden kasuto set to on in a vanilla east without hammering down the forest, it takes you to another screen instead of nowhere.
HRRN6G+7AjMXAAAESFbvug+7NWCX#4XSWZAALh is a solid set of flags to test.
The old test case doesn't work anymore because flags changed, and I can't seem to reproduce it on the current version. Really unsure what combination of flags could cause this, but for now i'm going to ignore it.
Not sure how this one got introduced but I confirmed it doesn't happen on 4.3.12
If you walk on the tile that normally contains hidden kasuto on the east (61, 51) with hidden kasuto set to on in a vanilla east without hammering down the forest, it takes you to another screen instead of nowhere.
HRRN6G+7AjMXAAAESFbvug+7NWCX#4XSWZAALh is a solid set of flags to test.