Missing default user-assigned identity name when creating containerized Function App

[v-ruizh]

OS: Win 11
Build Version: 20260203.1

Repro Steps:

1. Create a new containerized project in VS Code.
2. Create an advanced containerized Azure Function App with "Managed Identity" and select "+Create new user-assigned identity".
3. Check whether there is a default user-assigned identity name.

Expect:
There is a default user-assigned identity name, consistent with the behavior of a normal (non-containerized) advanced Function App.

Actual:
The user-assigned identity name field is empty

[v-ruizh]

This issue has been fixed on extension build 20260402.2.