Game detection of altered file?

[uberb134]

Thank you for creating this tool. I notice that it works inconsistently - sometimes the game ignores the edited amount altogether, and sometimes it works. I'm trying to figure out the sequence for success. I've tried copy/rename of the original save file, tried limiting the new gold amount to a double-byte int (<32,767), and tried editing all of the auto-saves to match the edited save file.

In the cases where it doesn't work, I'm not sure how it knows what the original value was. Maybe the game caches it and I need to exit the game completely and load a different saved game inbetween to avoid this?