500 Server Error Changing Cardype from File or Image to Anything Else about decko

[ethn]

Nice catch.

tl;dr - I'll fix the bug; it's pretty shallow. In the meantime, if you need to change a type like this, you can get there using ?view=edit_cardtype.

Recently we upgraded the UI so that you could see (and immediately fix) the content impacts of a type change. But that UI is not accounting for type changes in which the ui for the type you're changing from sends attributes that the type you're changing to can't handle.

The issue, in effect, is that the UI is sending a bad request (and one that our tests are not covering). There is no underlying reason why the card can't be changed. The underlying file/image will not be lost, but you're right that we should explain the impacts for existing links to that file/image and what will need to happen to use it again.