Holding a locked container and using any item interaction lets you see what is inside.

[dck k]

So for example applying something or ID'ing while holding a locked chest will let you see what is in said chest.

[RMTEW FULL NAME]

Do you have a save game? If you can provide one, it saves me spending the time to contrive the reported situation.

[dck k]

Hm, well the only save file I have at the depth locked chests start showing up is a pretty advanced and big one; big enough that bitbucket won't let me attach it to the comment even after compression. I uploaded it to a secondary host, hope that's fine http://www24.zippyshare.com/v/3178362/file.html

[RMTEW FULL NAME]

This has to be shelved until #118 is resolved.

The problem is that inventory enumeration just gives a flattened list of all the objects nearby. This can mean that some object in that list, may be inside an unlocked container, inside a locked container. So there's no way to determine that that some object is not really accessible, without lots of busy work.

When #118 is resolved, it can be done in such a way that this is fixed at the same time.