Submitting document with images fails and succeeds

[rpulkka]

Submitting a document that contains images has occurred repeatedly with 3 documents. I cannot send any of them due to error message about images and network error. Submitting new documents work ok.

Error log attached. The bug described here occurred on 2024-06-20.
Steps to reproduce

Make a document with observation photos
Submit the document while having poor internet connection
Submit gets frozen, and does not work even when network gets better
Document appears on unsent documents (on the Mobiilivihko front page)
Submit the document again

Expected

Submitting succeeds

Actual

Mobiilivihko shows warning about image metadata, see attachment
After tapping "ok", Mobiilivihko says "Tallennus onnistui"
The document remains under unsent document (on the Mobiilivihko front page)
If I try again, I always get the same error.

[mikkohei13]

Could be that fixing this would require making image-API more robust, in case submitting images fail.