Wine applications only show generic logo and description

[Kevin]

When running any Wine application, regardless of whether or not the application provides a logo, only the generic Wine logo will be shown, and only the generic "Wine Windows Program Loader" description appears.
I have tested this for MSOffice, various games, and other Wine applications, both with Crossover and standard Wine. The Wine logo is always the only thing shown, instead of the actual icon.

In the screenshot provided, I clicked the pinned Visio logo and the generic Wine logo appeared at the bottom.
This isn't a critical issue, but I have had to deal with it for the past 9 months and is a real experience-killer for those that are trying to use Ubuntu for work. My work requires Visio, but if I have Visio and Excel open, the launcher does not differentiate between the two. Right-Clicking the icon just shows two instances of "Wine Windows Program Loader" - not exactly efficient when you have more than 3 Wine applications open at once. Possibly a 100-papercuts project?

Also see my Ask Ubuntu question from a few months ago: http://askubuntu.com/questions/246693/wine-logo-appearing-for-every-crossover-application-in-unity

Testing in Gnome Classic or other DE's show the proper logo and description.

This bug did not occur (for me) in 12.04, but it does appear in 12.10 and 13.04. I believe it may be a regression in 12.10.

Please at least take a look at this to see if it can be fixed soon - at the *very least* by 13.10.