The bug when change to vim normal mode

[h31loo]

Prerequisites

• Write a descriptive title.
• Make sure you are able to repro it on the latest released version
• Search the existing issues, especially the pinned issues.

Exception report

### Environment
PSReadLine: 2.4.5
PowerShell: 7.6.2
OS: Microsoft Windows 10.0.26200
BufferWidth: 145
BufferHeight: 35

Last 11 Keys:

 l s Backspace Backspace Escape i c l s Enter Escape

### Exception

System.Management.Automation.RuntimeException: You cannot call a method on a null-valued expression.
   at System.Management.Automation.ExceptionHandlingOps.CheckActionPreference(FunctionContext funcContext, Exception exception)
   at System.Management.Automation.Interpreter.ActionCallInstruction`2.Run(InterpretedFrame frame)
   at System.Management.Automation.Interpreter.EnterTryCatchFinallyInstruction.Run(InterpretedFrame frame)
   at System.Management.Automation.Interpreter.EnterTryCatchFinallyInstruction.Run(InterpretedFrame frame)
   at System.Management.Automation.Interpreter.Interpreter.Run(InterpretedFrame frame)
   at System.Management.Automation.Interpreter.LightLambda.RunVoid1[T0](T0 arg0)
   at System.Management.Automation.ScriptBlock.InvokeWithPipeImpl(ScriptBlockClauseToInvoke clauseToInvoke, Boolean createLocalScope, Dictionary`2 functionsToDefine, List`1 variablesToDefine, ErrorHandlingBehavior errorHandlingBehavior, Object dollarUnder, Object input, Object scriptThis, Pipe outputPipe, InvocationInfo invocationInfo, Object[] args)
   at System.Management.Automation.ScriptBlock.InvokeWithPipe(Boolean useLocalScope, ErrorHandlingBehavior errorHandlingBehavior, Object dollarUnder, Object input, Object scriptThis, Pipe outputPipe, InvocationInfo invocationInfo, Boolean propagateAllExceptionsToTop, List`1 variablesToDefine, Dictionary`2 functionsToDefine, Object[] args)
   at System.Management.Automation.ScriptBlock.DoInvokeReturnAsIs(Boolean useLocalScope, ErrorHandlingBehavior errorHandlingBehavior, Object dollarUnder, Object input, Object scriptThis, Object[] args)
   at System.Management.Automation.ScriptBlock.InvokeReturnAsIs(Object[] args)
   at Microsoft.PowerShell.PSConsoleReadLine.ViIndicateCommandMode()
   at Microsoft.PowerShell.PSConsoleReadLine.ViCommandMode(Nullable`1 key, Object arg)
   at Microsoft.PowerShell.PSConsoleReadLine.ProcessOneKey(PSKeyInfo key, Dictionary`2 dispatchTable, Boolean ignoreIfNoAction, Object arg)
   at Microsoft.PowerShell.PSConsoleReadLine.InputLoop()
   at Microsoft.PowerShell.PSConsoleReadLine.ReadLine(Runspace runspace, EngineIntrinsics engineIntrinsics, CancellationToken cancellationToken, Nullable`1 lastRunStatus)

Screenshot

when press escape to change to vim normal model, show the bug information above.

Environment data

### Environment
PSReadLine: 2.4.5
PowerShell: 7.6.2
OS: Microsoft Windows 10.0.26200
BufferWidth: 145
BufferHeight: 35

Last 11 Keys:

 l s Backspace Backspace Escape i c l s Enter Escape

Steps to reproduce

press escape to change to vim normal model, it and enter into normal model , but show the bug information everytime

Expected behavior

don't show the bug information

Actual behavior

show bug information

[sharpchen]

You have a custom ViModeChangeHandler triggering this