I entered a description that was longer than the 250 characters allowed. That’s OK, but it would be great if there could be a word count as a warning, or to decide where to truncate.
The main problem though, is that when that error is flagged up, the link to the image disappears and I have to start all over again.
I have added a counter to the image description field.
We can’t avoid this bit I’m afraid. This is done by browsers for security reasons, as file fields should never have a default value (eg: a selected file): upon an error after submitting, the file inputs always needs to be selected again. With the character counter this should be less of an issue.