ArgumentOutOfRangeException when copying text

[DaveSweeton]

From the activity log:

System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values. Parameter name: span at Microsoft.VisualStudio.Text.Implementation.BinaryStringRebuilder.GetText(Span span) at Microsoft.VisualStudio.Text.Implementation.CachingTextImage.GetText(Span span) at Microsoft.VisualStudio.Text.Implementation.BaseSnapshot.GetText(Span span) at Tweakster.Tweaks.Editor.CopyWithoutIndentation.ExecuteCommand(CopyCommandArgs args, CommandExecutionContext executionContext) in C:\projects\tweakster\src\Tweaks\Editor\CopyWithoutIndentation.cs:line 38 at Microsoft.VisualStudio.Commanding.CommandHandlerExtensions.ExecuteCommand[T](ICommandHandler commandHandler, T args, Action nextCommandHandler, CommandExecutionContext executionContext) at Microsoft.VisualStudio.UI.Text.Commanding.Implementation.EditorCommandHandlerService.<>c__DisplayClass13_11.<Execute>b__1() at Microsoft.VisualStudio.Text.Utilities.GuardedOperations.CallExtensionPoint(Object errorSource, Action call, Predicate1 exceptionFilter) --- End of stack trace from previous location where exception was thrown --- at Microsoft.VisualStudio.Telemetry.WindowsErrorReporting.WatsonReport.GetClrWatsonExceptionInfo(Exception exceptionObject)