Importing data : When I add a file I can't deleting the field filled in with the file's URL

[Aurelie-Jallut]

Is your feature request related to a problem? Please describe.
When I add a file and finally want to add a URL, I don't have the option of deleting the field filled in with the file's URL.
So I see the 2 fields filled in and I don't know which one will be taken into account for the import.

Describe the solution you'd like
I'd like to select the content of the field to delete it or to have a delete icon.

Additional context
I try this on French public instance / Firefox