Adaptive expression context access with non-standard objects

[LeonYasoon]

Versions

What package version of the SDK are you using. 4.23.1
What nodejs version are you using 22
What browser version are you using -
What os are you using macOS

Describe the bug

When providing a non-standard object to $root in AC.expand() when rendering adaptive cards, the context cannot access properties that are in non-standard objects.

To Reproduce

AC.expand({ $root: new DataObjectOfYourChoice({ propertyToAccess: "hasAValue" }) })

AC template: "text": "${propertyToAccess}"

Expected behavior

Text should show "hasAValue", but the property is returned as undefined

Additional context

I tried opening a fix PR for this but i'm unsure of the contribution rules in this repo of if it is even possible. Pushing to a feature branch is not allowed for my git user.

The fix would be in libraries/adaptive-expressions/src/functionUtils.internal.ts lines 221-232:

 const prop: string = Object.keys(instance).find(
      (k: string): boolean => k.toLowerCase() === property.toLowerCase(),
  );
  if (prop !== undefined) {
      value = instance[prop];
  } else if (instance[property] !== undefined || instance[property.toLowerCase()] !== undefined) {
      value = instance[property] ?? instance[property.toLowerCase()];
  }

My change is the else block.