The MediaWiki software shouldn't accept uploaded files if:
1-The uploader entered a blank summary.
and
2-The uploader didn't choose a license from the drop-down menu (which contains licenses listed at MediaWiki:Licenses).
If the above conditions are satisfied then an error message should appear to the user saying that he should select a license.
This will decrease the enormous number of uploaded files with missing licenses.
Version: 1.11.x
Severity: enhancement