edit summary in upload dialogue sometimes still uses old value

[stw1701]

When entering a new text in the "brief comment" field in the upload dialogue, sometimes the old value is still used and sent to the server.

This is hard to reproduce even for me, but I think it has something to do with the way Java registers changes in the checkbox. I'd have to press Return two or three times to get it right. Interesting thing is that the new value still shows up when I open the dialogue again.

Version 3592