The new function to remove the lost status from the item edit form is confusing to librarians because they can still mark and item lost on the add item form. I know this can be hidden in the framework, but it seems like this should be hidden from both the add and the edit item form by default if we want to make it clear that you can't mark an item lost this way anymore.
This doesn't appear to be valid anymore in 3.6.x as of 3.6.11, and is not in master as of 3.12 beta2.