Possible to upload photos marked with incompatible license metadata fields to photo directory

[sarayourfriend]

I uploaded a photo earlier this week (​https://wordpress.org/photos/photo/12962a0b7f/). It was approved a couple days later, however today I was editing photographs taken with the same camera and realized that I actually have a copyright field configured in the camera to add a CC BY-NC-SA 4.0 metadata field to every RAW file produced by the camera. My photo editing software keeps these in the generated JPEGs. I confirmed that when downloading the image linked above from the photo directory and inspecting the metadata fields in GIMP, I can still find the CC BY-NC-SA field on the image.

I'm not sure what my recommendation for a fix is: either moderators could be tasked with checking for these kinds of fields or these fields could just be automatically wiped from uploaded images. However, it seems like the first is probably the correct option as it would prevent illegitimate (incompatibly licensed) uploads from making it into the directory in the first place.

[JeffPaul]

Given that a contributor consents to the ​CC0 license upon uploading an image, it would seem that the currently handling of keeping that license in the photo attribution is correct. However, perhaps part of the upload and processing could strip any existing data in the EXIF field for license and instead set CC0 as the proper license?

[JeffPaul]

Looks like processing/moderation might cover this now? ​https://make.wordpress.org/photos/handbook/moderating-photos/moderation-interface-and-metabox-overview/#exif. Though if the data on existing licensing isn't highlighted to the moderator and if there's no easy way to clearly set it to CC0, then those both seem like good updates for moderators to catch this sort of issue.