`/refresh` does not clear previously used parameters in the Azure agent

[StevenBucher98]

Prerequisites

• Write a descriptive title.
• Make sure you are able to repro it on the latest version
• Search the existing issues.

Steps to reproduce

When I run /refresh I expect that the previously used parameters I filled out with /replace are no longer available, however they are still being used.

Expected behavior

`/refresh` removes all previously used parameter values

Actual behavior

previously used parameter values are kept across new "chats" after using `/refresh`

Error details

n/a

Environment data

Name                           Value
----                           -----
PSVersion                      7.5.0
PSEdition                      Core
GitCommitId                    7.5.0
OS                             Microsoft Windows 10.0.22631
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

Version

1.0.0-preview.2

Visuals