When uploading a new file, properties fail to be cleared/removed

[alexcottner]

See attached video.

1. Edit an existing record on a collection that supports file attachments
2. Clear out a property
3. Attach a new file
4. Click update
5. Note that the property you tried to clear has the old value in it

If you change the property to something else, it will change as expected. Only trying to set it to blank/undefined causes this issue.

remote-settings-update-2.mp4

[alexcottner]

Suggested workaround for now - delete old record and create new one while we work on a solution. This looks like it will require changes in both kinto-admin and kinto-attachment or kinto.

[leplatrem]

Why not clear the property without attaching a new file?
(It could be done in two steps...)

Unless we introduced a regression, it should be possible to edit attributes without having to attach a file if the record has already one

[alexcottner]

That is a separate bug that I opened and has been fixed. This one is a little more complicated because it probably involves changing a couple things, and might cause our UI and kinto-attachment versions to become connected for a few releases.

But also, hopefully this issue is much rarer with us fixing the other bug and we can make it a lower priority.