PS requested bug report when I posted the eyes emojis as a string and hit Enter

[mrenton999]

Prerequisites

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Exception report

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Please report this bug with ALL the details below, including both the 'Environment' and 'Exception' sections.
Please report on GitHub: https://github.com/PowerShell/PSReadLine/issues/new?template=Bug_Report.yaml
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### Environment
PSReadLine: 2.3.6+d2e770f93b7a53d8660a6402eb29d1ae1c35e767
PowerShell: 7.5.2
OS: Microsoft Windows 10.0.26100
BufferWidth: 180
BufferHeight: 9001

Last 200 Keys:

 Spacebar b o o k s Enter
 m o v e Spacebar \ 2 \ e B o o k s Spacebar \ e B o o k s Enter
 d Spacebar c : Spacebar d Backspace - d i r Spacebar Enter
 UpArrow Home RightArrow RightArrow RightArrow RightArrow \ Enter
 d Spacebar c : \ e b o o k s Tab Enter
 g s f Spacebar D o w n l o a d s Enter
 UpArrow Home Ctrl+RightArrow * Delete d End * Enter
 UpArrow Home RightArrow RightArrow RightArrow RightArrow RightArrow Delete Enter
 d Spacebar C : \ U s e r s \ m w r e n \ D o w n l o a d s \ * . e p u b Enter
 UpArrow \ T h e Tab Backspace Backspace Backspace Backspace Backspace Backspace Backspace Backspace Backspace Backspace T h e Tab Enter
 UpArrow Home Delete m o v e End Spacebar \ e B o o k s \ Enter
 c d Spacebar \ e B o o Tab Enter
 d Enter
 b l o t Spacebar T h e Tab Enter
 Enter
 ' � � � � Backspace ' Enter


### Exception

System.Text.EncoderFallbackException: Unable to translate Unicode character \\uD83D at index 3 to specified code page.
   at System.Text.EncoderExceptionFallbackBuffer.Fallback(Char charUnknown, Int32 index)
   at System.Text.Encoding.GetBytesWithFallback(ReadOnlySpan`1 chars, Int32 originalCharsLength, Span`1 bytes, Int32 originalBytesLength, EncoderNLS encoder, Boolean throwForDestinationOverflow)
   at System.Text.Encoding.GetBytesWithFallback(Char* pOriginalChars, Int32 originalCharCount, Byte* pOriginalBytes, Int32 originalByteCount, Int32 charsConsumedSoFar, Int32 bytesWrittenSoFar, EncoderNLS encoder)
   at System.IO.StreamWriter.Flush(Boolean flushStream, Boolean flushEncoder)
   at System.IO.StreamWriter.Dispose(Boolean disposing)
   at Microsoft.PowerShell.PSConsoleReadLine.<>c__DisplayClass103_0.<WriteHistoryRange>b__0()
   at Microsoft.PowerShell.PSConsoleReadLine.WithHistoryFileMutexDo(Int32 timeout, Action action)
   at Microsoft.PowerShell.PSConsoleReadLine.MaybeAddToHistory(String result, List`1 edits, Int32 undoEditIndex, Boolean fromDifferentSession, Boolean fromInitialRead)
   at Microsoft.PowerShell.PSConsoleReadLine.InputLoop()
   at Microsoft.PowerShell.PSConsoleReadLine.ReadLine(Runspace runspace, EngineIntrinsics engineIntrinsics, CancellationToken cancellationToken, Nullable`1 lastRunStatus)

Screenshot

Copied emojis from another window, pasted them into PowerShell after a quote, hit so only 1 pair of eyes showed, typed the other quote; I think that's when the exception occurred
I think the text pasted was: 👀👀

Environment data

PS Version: 7.5.2
PS HostName: ConsoleHost
PSReadLine Version: 2.3.6
PSReadLine EditMode: Windows
OS: 10.0.26100.1 (WinBuild.160101.0800)
BufferWidth: 180
BufferHeight: 9001

Steps to reproduce

At PS prompt type single quote, paste this pair of double-eye emojis: 👀👀
Press once; the eyes emoji and a <?> symbol appear
type another single quote, press Enter
(boom)

Expected behavior

The string of unicode characters should be echoed to the window

Actual behavior

The above exception happens.

[mrenton999]

Pasting the same pair of eye emojis (which seems maybe to have a joiner character or two) like this to show the unicode values produces:
PS> [int[]]'👀👀'.toCharArray()
55357
56384
55357
56384

[daxian-dbw]

Thanks for reporting the issue. PowerShell doesn't handle surrogate pairs well today, and this is a duplicate of #1329.