Amazon Q alters business logic when explicitly telling it not to do so while request xml doc on ASP.NET application

## Problem
When running a prompt that explicitly states not to make change to logic and to focus only on commenting code, Q still will change logic.

## Steps to reproduce the issue

## Expected behavior
logic should not have changed with this prompt

[DotNet - Add Documentation Comments.md](https://github.com/user-attachments/files/20595594/DotNet.-.Add.Documentation.Comments.md)

## System details (run `AWS: About` and/or `Amazon Q: About`)

- OS: Windows 10 Enterprise, 19045.5854
- Visual Studio Code version: 1.100.3
- AWS Toolkit version: 3.63.0
- Amazon Q version: 1.70.0

Start by reproducing the issue in VS Code with the attached DotNet - Add Documentation Comments.md prompt against Global.asax.cs. Compare the generated file with the original, especially the favicon route string; done means documentation comments are added while the existing business logic and string literals remain unchanged.

Written by the indexing model from the issue text.