I am running Semantic Mediawiki 3.2 , MW 1.24.

This issue is about uploadable input type, eg:

{{{field|Field1|input type=text|uploadable=uploadable}}}

When any warning occurs during upload process (popup window opened) regardless of user choice (ignore warning button) in final input value becomes blank - uploaded file name not transferred to input.

To reproduce:

1. Create form with input mentioned above
2. Open new page creating with this form
3. Click on "Upload file" near input
4. Select file which already exists in system, click "Upload file"
5. Warning appears, click on "Ignore warning and save file anyway"