/edit command adds opening file as instruction

[5eqn]

Before submitting your bug report

• I believe this is a bug. I'll try to join the Continue Discord for questions
• I'm not able to find an open issue that reports the same bug
• I've seen the troubleshooting guide on the Continue Docs

Relevant environment info

- OS: Arch Linux 6.8.8-arch1-1
- Continue: Latest preview branch (Commit 3c954dd8ceb0311c9dda95b0326494b12f04fdc4)
- IDE: VSCode 1.88.1
- Model: Ollama v0.1.32

Description

After PR #1231 , when using /edit, the content is appended with a MessagePart showing current opening file:

It does not get deleted in the prompt:

This can confuse the model.

Proposed fix

Use input instead of history[history.length - 1].content to get the content. I tested in my environment that this fix is valid.

This works because input is calculated by selecting the last text MessagePart (as in resolveInput).

Check out PR #1238 !

To reproduce

1. Build extension from latest preview branch
2. Use /edit
3. Go to output and check the prompt

Log output

Settings:
contextLength: 8192
model: llama3-8b
maxTokens: 4096
stop: <|start_header_id|>,<|end_header_id|>,<|eot_id|>
raw: true

############################################

<|start_header_id|>user<|end_header_id|>

import { factorial, repeat } from "./factorial";
<START EDITING HERE>
function fib(n) {
    if (n <= 1) return n;
    return fib(n - 2) + fib(n - 1);
}
<STOP EDITING HERE>
```

Please rewrite the entire code block above, editing the portion below "<START EDITING HERE>" in order to satisfy the following request: "The following file is currently open. Don't reference it if it's not relevant to the user's message.

```example.ts
import { factorial, repeat } from "./factorial";

function fib(n) {
    if (n <= 1) return n;
    return fib(n - 2) + fib(n - 1);
}

let d = repeat(5, "a");
console.log(d);

let e = factorial(3);
console.log(e);
```

change this to O(n)". When you get to "<STOP EDITING HERE>", end your response.
<|eot_id|><|start_header_id|>assistant<|end_header_id|>
Sure! Here's the entire code block, including the rewritten portion:
```typescript
import { factorial, repeat } from "./factorial";
<START EDITING HERE>

[5eqn]

Fixed by #1238