Try it yourself with something not too important. Add item into shop, use /shop remove while it's not yet Zeroed. Item will not just be removed from "base Selling" list - but also from your cargo viewst, even though it's stil in your cargo. Undocking from base - shows cargo - redocking - doesn't Changing account to something with same cargo - doesn't help either.
[Not covering any numbers as there's nothing usable for sabotage in pics.]
NOTE: ex-stock will not be restored - Removed player made device, CAU8 or fuel/crew/food/anything iportant by accident? SUX2BU.
I was noticing cargo being "gone" once docked in base before. But seems it was just a quincidence of item not being properly zeroed before removal by me or someone else within current FL session.
Restart FL and it should be back to normal. At least it worked for me.
Post is meant to inform those who aren't aware of it yet, so one doesn't panic of not being able to sell Fuel or food anymore
AND would be nice if notice for "Bug Fix" would be put onto ToDo list.