WD-21811 - snap icon causes Internal Server Error

[alvaromateo]

Done

• Fixes data not being refreshed in the hidden PreviewForm present in ListingForm.tsx
• Fixes Internal Server Error caused when previewing a snap page when a new icon has been added and there's a blob image only present in the browser.

How to QA

• Check out this PR
• Execute dotrun and access the server at http://127.0.0.1:8004/
• Visit any snap listing page, i.e. http://127.0.0.1:8004/tdhcad/listing
• Add an icon image from your computer
• Click on the Preview button

Testing

• This PR has tests
• No testing required (explain why):

Issue / Card

Fixes WD-21811

[webteam-app]

Demo

Jenkins

demos.haus

[alvaromateo]

I didn't see any test at all for the Preview page. I don't know if it is not testable or missing for any other reason.
Should I work on adding some unit tests for it?

[steverydz]

I didn't see any test at all for the Preview page. I don't know if it is not testable or missing for any other reason. Should I work on adding some unit tests for it?

@alvaromateo To my knowledge there isn't a specific reason why that page isn't tested. Our test coverage isn't as good as it could be so any tests to cover new or existing work are always welcome.

[steverydz]

LGTM 👍

[steverydz]

LGTM 👍