ArgumentOutOfRangeException in ValidatePosition

Still getting this exception in 1.11.0 version of the extension in v1.31.1 of VSCode.

2019-02-23 22:10:41.702 [VERBOSE] tid:17 in 'ResolveFilePath' C:\PowerShellEditorServices\src\PowerShellEditorServices\Workspace\Workspace.cs: line 466
    Resolved path: c:\Users\Keith\GitHub\dahlbyk\posh-git\src\GitUtils.ps1

2019-02-23 22:10:41.888 [ERROR] tid:43 in 'OnListenTaskCompleted' C:\PowerShellEditorServices\src\PowerShellEditorServices.Protocol\MessageProtocol\ProtocolEndpoint.cs: line 391
    ProtocolEndpoint message loop terminated due to unhandled exception:
    
    System.AggregateException: One or more errors occurred. (Specified argument was out of the range of valid values.
    Parameter name: Position 569:64 is outside of the line range of 1 to 497.) ---> System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values.
    Parameter name: Position 569:64 is outside of the line range of 1 to 497.
       at Microsoft.PowerShell.EditorServices.ScriptFile.ValidatePosition(Int32 line, Int32 column)
       at Microsoft.PowerShell.EditorServices.ScriptFile.ApplyChange(FileChange fileChange)
       at Microsoft.PowerShell.EditorServices.Protocol.Server.LanguageServer.HandleDidChangeTextDocumentNotification(DidChangeTextDocumentParams textChangeParams, EventContext eventContext)
       at Microsoft.PowerShell.EditorServices.Protocol.MessageProtocol.MessageDispatcher.<>c__DisplayClass6_0`2.<SetEventHandler>b__0(Message eventMessage, MessageWriter messageWriter)
       at Microsoft.PowerShell.EditorServices.Protocol.MessageProtocol.MessageDispatcher.DispatchMessage(Message messageToDispatch, MessageWriter messageWriter)
       at Microsoft.PowerShell.EditorServices.Protocol.MessageProtocol.ProtocolEndpoint.ListenForMessages(CancellationToken cancellationToken)
       at Microsoft.PowerShell.EditorServices.Utility.AsyncContext.Start(Func`1 asyncMainFunc, ILogger logger)
       at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
    --- End of stack trace from previous location where exception was thrown ---
       at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot)
       --- End of inner exception stack trace ---
    ---> (Inner Exception #0) System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values.
    Parameter name: Position 569:64 is outside of the line range of 1 to 497.
       at Microsoft.PowerShell.EditorServices.ScriptFile.ValidatePosition(Int32 line, Int32 column)
       at Microsoft.PowerShell.EditorServices.ScriptFile.ApplyChange(FileChange fileChange)
       at Microsoft.PowerShell.EditorServices.Protocol.Server.LanguageServer.HandleDidChangeTextDocumentNotification(DidChangeTextDocumentParams textChangeParams, EventContext eventContext)
       at Microsoft.PowerShell.EditorServices.Protocol.MessageProtocol.MessageDispatcher.<>c__DisplayClass6_0`2.<SetEventHandler>b__0(Message eventMessage, MessageWriter messageWriter)
       at Microsoft.PowerShell.EditorServices.Protocol.MessageProtocol.MessageDispatcher.DispatchMessage(Message messageToDispatch, MessageWriter messageWriter)
       at Microsoft.PowerShell.EditorServices.Protocol.MessageProtocol.ProtocolEndpoint.ListenForMessages(CancellationToken cancellationToken)
       at Microsoft.PowerShell.EditorServices.Utility.AsyncContext.Start(Func`1 asyncMainFunc, ILogger logger)
       at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
    --- End of stack trace from previous location where exception was thrown ---
       at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot)<---

vscode-powershell.zip

This happened when I was pasting some text in the middle of the file.

Start with Microsoft.PowerShell.EditorServices.ScriptFile.ValidatePosition and ApplyChange, then trace the call from LanguageServer.HandleDidChangeTextDocumentNotification. Reproduce the reported paste operation in VSCode using the supplied logs and archive; done means the change no longer terminates the protocol message loop with an ArgumentOutOfRangeException.