Bug: CodeNav breaks Document Outline window

[stamminator]

When CodeNav is in use, I find the built-in Document Outline window frequently gets into a broken state. While CodeNav can serve as a replacement for Document Outline in standard C# code, it's still required for some workflows, such as anything using a designer. Once Document Outline gets into this broken state, only closing all the CodeNav views and restarting Visual Studio gets it working again. This effectively prevents me from being able to use CodeNav in many of my projects.

I haven't troubleshot the issue enough to be certain, but I think that it's less likely to occur when using the CodeNav view embedded in the code editor rather than the separate CodeNav window. However, I'm still seeing consistent enough breakage in either mode to make it unworkable.

P.S. Sorry for the influx of issues! I noticed that you're already working on some updates, so I figured these would be useful.

[RiaGruen]

That's a breaking bug for me, too :(