[JS][Templating] "$when" should not be emitted in expanded template

[dclaux]

Platform

• JavaScript

Details

The $when clause is correctly handled by the templating engine, but when it evaluates to true it is emitted into the generated payload.

Example:

{
  "type": "AdaptiveCard",
  "$data": {
    "isVisible": true
  },
  "body": [
    {
        "type": "TextBlock",
        "$when": "${isVisible}",
        "text": "Hello world"
    }
  ]
}

After expansion, the generated payload is:

{
  "type": "AdaptiveCard",
  "body": [
    {
        "type": "TextBlock",
        "$when": true,
        "text": "Hello world"
    }
  ]
}

While the presence of the $when property doesn't hurt, it jus shouldn't be there.

[ghost]

🎉AdaptiveCards@2020.08 has been released which fixes this issue.:tada:

Handy links:

• Release Notes
• AdaptiveCards Website
• Official NPM Designer Release
• Official NPM Templating Release
• Official NPM Renderer Release
• Official Nuget Templating Release
• Official Nuget Renderer Release
• Official Maven Renderer Release
• Official CocoaPod Renderer Release