What do I do with disturbing bug reports in Wine about system crashes?

[Paul Dufresne]

For adding a task on an other package, I go to the pink 'Actions' menu
in upper left, click on 'Also affects distribution', choose 'Ubuntu'
as distribution in upper textbox, and the the package you guess the
bug apply in lower textbox. Then click 'continue' button.

I really suggest you guess the package. As a bug triager, that's what
we invite bug reporters to do. So as a developer, your guess may well
be better than what I guess anyway as a bug triager. Most bugs on
Ubuntu get lost for a long time.