Adding dungeon draw features resets modified wall features in standard mode

[reedharder]

Excellent module!

When I add a new feature (e.g. a room) in dungeon draw, it seems to reset any features I have added in standard walling mode (e.g. making a door a locked door). Is this known/intended behavior? If so, is there a good way to add locked doors from within dungeon draw? If not, might it be an interaction with some other module?