Accept an optional second proof per price

[serpico]

Sometimes ( particularly in case of discount ) all the information isn't provided in just one picture ( example below ).

• First picture gives all the prices but no EAN.
• Second picture gives the EAN ( although I struggled, due to the poor quality, to firm up the info but managed to succeed in the end, tried all combinations with a different last digit, found it ) .

https://prices.openfoodfacts.org/proofs/56367

What

Allow advanced users ( maybe through preferences ) to upload a second picture to provide the entirety of the information.

[raphodn]

Hi !
The current data model only allows for 1 proof for a given price..
Power users could merge the pictures together somehow ?
It's kind of like the long pdf receipts, have ways to merge them into one single image ?