I have enabled the "Request additional image uploader information" and I create two additional fields to request information (custom tags) when uploading the photos.
There are several issues, some seem easier to fix, others more difficult:
- When creating the poll and uploading a batch of images you are not able to set the custom tags in the photos (this is not a big problem for me)
- The critical issue is when you try to edit the custom tags of one of the photos, then all the other photos custom tags are also changed with the same value as you input in the one you edited. It seems as if the custom tag is sharing the same variable for all photos.