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Changing Git branches from the command line results in non-fatal Watsons and error reports

See original GitHub issue

I don’t have a precise repro at this time, but here’s the stack. I feel like I’ve seen it the last two or three days while dogfooding internal builds, but it’s a newerish regression it feels like.

Microsoft.VisualStudio.ProjectSystem.VS.Implementation.Package.DocumentLockedException (0x80070005): Operation canceled because the document 'F:\Projects\Roslyn\src\CodeStyle\Core\Tests\Microsoft.CodeAnalysis.CodeStyle.UnitTestUtilities.csproj' is locked by another component. Try opening the document to unlock.
   at Microsoft.VisualStudio.ProjectSystem.VS.Implementation.Package.DocumentManager.VerifyDocumentIsClosed(RunningDocumentTable runningDocuments, String itemPath)
   at Microsoft.VisualStudio.ProjectSystem.VS.Implementation.Package.DocumentManager.Close(SimpleHierarchyNode projectItem, __FRAMECLOSE closeFlag)
   at Microsoft.VisualStudio.ProjectSystem.VS.Implementation.Package.DocumentManager.CloseOrDetachDocument(SimpleHierarchyNode projectItem)
   at Microsoft.VisualStudio.ProjectSystem.VS.Implementation.Package.SimpleItemNode.CloseOrDetachDocument()
--- End of stack trace from previous location where exception was thrown ---
   at Microsoft.VisualStudio.ProjectSystem.CommonProjectSystemTools.Rethrow(Exception ex)
   at Microsoft.VisualStudio.ProjectSystem.CommonProjectSystemTools.RethrowOrAggregate(ICollection`1 exceptions)
   at Microsoft.VisualStudio.ProjectSystem.VS.Implementation.Package.SimpleItemNode.CloseOrDetachDocument()
   at Microsoft.VisualStudio.ProjectSystem.VS.Implementation.Package.TreeService.TreeData.OnBeforeApplyTree()
   at Microsoft.VisualStudio.ProjectSystem.VS.Implementation.Package.TreeService.ApplyAsync(TreeData value)
--- End of stack trace from previous location where exception was thrown ---
   at Microsoft.VisualStudio.ProjectSystem.CommonProjectSystemTools.Rethrow(Exception ex)
   at Microsoft.VisualStudio.ProjectSystem.ProjectErrorReporting.<>c__DisplayClass6_0.<SubmitErrorReport>b__0()
   at Microsoft.VisualStudio.ProjectSystem.ExceptionFilter.<>c__DisplayClass2_0.<Guard>g__action|0()
   at GuardMethodClass.GuardMethod(Func`1 , Func`2 , Func`2 )