The "stolen" tag is removed for stackable items if you have a non-stolen item of that kind in your inventory and the stacks get merged.
So if you want to have a "nice piece of armor" without risk (and without "paying" for it) you must actually buy it and then steal your gold back. Your stolen gold and non-stolen gold gets merged to one stack without "stolen" tag.
Last edited by Tommy123; 18/09/17 12:26 AM.