Copilot CLI started producing garbage in the zsh terminal

### Describe the bug

I'm pasting the output below and I asked copilot why this started happening.

```

● SP hefే ඛkirmacro租ඛkirynek ඛynek ඛynek ඛynek ඛynek ඛynek ඛynek ඛynek ඛynek ඛynek ඛynek ඛynek ඛynek ඛynek ඛynek ඛynek ඛສynek ඛynek ඛynek ඛynek ඛynek ඛສynek ඛສສສສສສສmarlmarlສສສສສສສສສສສສສສmarlສສສສສສສສສmarlສສສສສmarlສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສmarlສmarlສສmarlສສສmarlສສສສສສສສສສ
ສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສ
ສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສ
ສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສ
ສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສ
ສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສ
ສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສfavour ඛສສສສສສສສສສສສສສສສສສສmarlສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສfavour ඛສສສສສສສສສສສສສfavour
favour ඛສສສfavour ඛສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສfavour ඛສfavour ඛສfavour ඛສfavour ඛສfavour favour ඛສfavour ඛສfavour favour ඛສfavour favour ඛສfavour ඛສfavour favour favour favour ඛສfavour ඛສfavourármazynek
ඛສfavourármazאármazאármazאármazאármazאármazאármazאármazאármazאármazאármazאármazאármazאármazאármazאármazאármazאármazאármazאármazאármazאármazאármazאármazא א א א א א ඛສfavourármazא א א א א א א א א א א ඛສfavourármazאármazא א א א א א ඛfavourármazא א א א א א א א א א א ඛສfavourármazא א א א
א א א א א א א ඛສfavourármazא א א א א ඛfavourármazא א א א א א א א א א א א א א א א א א א א א א א א א א ඛfavourármazא א א א א א א א א א א א א אármazא א א א א א א א אármazඛfavourármazא א א א א א א א א א א א א א א א א א א א א א א א א א א א א א א א א א א א א א א א א א א א א א א א א א א א א
א א א א ඛfavourármazא א א א א א א א א א א א א א א א א א א א א א א א א א ඛfavourármazא א א א א ඛfavourármazא א א א א א א א א ඛfavourármazא א א ඛfavourármazא א א א א א א א א א א א א א א א א א א א א א א א א א א א א א א א א א ඛfavourármazא א א א א א א ඛfavourármazא א א א א א א א א א
ඛfavourármazא א א א א א א א א א א ඛສfavourármazא א א ඛສfavourármazא א א א א א א א א ඛສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສ
ສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສfavourármazא א א א א א א א א א א א א א א א א א א א א א א א א א ඛສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສ
ສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສfavourármazא א א א א א א א א א א א א א א א א א א א א א א א א א
א א א א ඛສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສສ

● Operation cancelled by user

> you seem confused can you please pause for a second and start up again

● Operation cancelled by user

> alright can you try again it seemed like you were getting a bit confused there

● Operation cancelled by user

> you started outputting garbage, is there anything you can tell me about why so that I can log a bug?

● I apologize for the confusion. Looking back at what happened:

The issue: I was trying to edit Window.cs but couldn't match the exact text because:

- I viewed lines 534-562 which showed one version of the code
- But when I tried to edit, I was using a different/older version of the text
- The code I viewed had SendWindowDisppearing() (with typo) but I was trying to match against SendWindowDisappearing() (correct spelling)

Root cause: I likely had stale context about what the actual file content was, possibly from earlier in the conversation when we made other changes to Window.cs.
```

### Affected version

0.0.382

### Steps to reproduce the behavior

I'm not sure how to reproduce this, it just started happening during a session so I stopped copilot from working and then told it to tell me why it messed up.

I'm hoping copilot self analysis is useful enough to figure out what went wrong.

If there's a way to extract more information from the session please let me know.

### Expected behavior

_No response_

### Additional context

macOS
ARM
zsh