Changing language type of pasted code in new file crashes pwsh terminal session

[yobyot]

System Details

System Details Output

### VSCode extensions:
eamodio.gitlens@9.4.1
HookyQR.beautify@1.4.7
ms-vscode.PowerShell@1.10.2
robertohuertasm.vscode-icons@8.0.0
streetsidesoftware.code-spell-checker@1.6.10


### PSES version: 1.10.2.0

### PowerShell version:

Name                           Value
----                           -----
PSVersion                      6.1.1
PSEdition                      Core
GitCommitId                    6.1.1
OS                             Microsoft Windows 10.0.17763
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

Issue Description

Changing language type of pasted code in new file crashes pwsh terminal session
To reproduce:

1. Set default filetype to .ps1
2. Open existing .ps1 containing JSON here-string.
3. Copy and paste JSON to new file
4. Change filetype of new file to JSON
5. vs-code powershell crashes terminal

Expected Behaviour

Extension should not crash pwsh terminal session.

Actual Behaviour

Extension crashes pwsh terminal session.

Attached Logs

vscode-powershell-logs.zip

Follow the instructions in the troubleshooting docs
about capturing and sending logs.

[rjmholt]

This looks like it might be #1649.

Is your default file type set to PowerShell? If so, does commenting out that setting fix the problem?

[yobyot]

Nice catch, @rjmholt.

Yes, default type is set to ‘powershell’ Vscode is an ISE replacement for me so it’s more convenient to set the default type to .ps1.

I’ll try changing the default to something else.

[yobyot]

Removing 'powershell' from the files.defaultLanguage setting stops the terminal from crashing, so the problem is likely a dup of #1649.

[SydneyhSmith]

@yobyot thanks for checking that! I will close this issue for now as a dup of #1649 but please let us know if you start running into this issue again