Inconsistency in show card collapse behavior

There is an inconsistency between renderers as to what should happen when another non-showcard button in a action set is pressed when a show card is showing. In javascript, pressing any other button will collapse the shown show card. In UWP and .NET, only pressing another ShowCard button will collapse the shown show card.

JS	UWP/.NET

Repro card

{
    "type": "AdaptiveCard",
    "version": "1.0",
    "body": [
        {
            "type": "TextBlock",
            "text": "My card"
        },
        {
            "type": "TextBlock",
            "text": "Content to toggle",
            "id": "toggle1",
            "isVisible": false
        },
        {
            "type": "TextBlock",
            "text": "Toggled content",
            "id": "toggle2"
        },
        {
            "type": "ActionSet",
            "actions": [
                {
                    "type": "Action.ShowCard",
                    "title": "Action.ShowCard",
                    "card": {
                        "type": "AdaptiveCard",
                        "version": "1.0",
                        "body": [
                            {
                                "type": "TextBlock",
                                "text": "ShowCard contents",
                                "id": "hidey"
                            }
                        ],
                        "$schema": "http://adaptivecards.io/schemas/adaptive-card.json"
                    }
                },
                {
                    "type": "Action.ToggleVisibility",
                    "title": "Action.ToggleVisibility",
                    "targetElements": [
                        "toggle1",
                        "toggle2"
                    ]
                }
            ]
        }
    ],
    "$schema": "http://adaptivecards.io/schemas/adaptive-card.json"
}

[dclaux]

@andrewleader I do, it is the behavior of the JS renderer. ShowCard was designed very early on and comes from the equivalent feature in Outlook Actionable Messages. The feature, including the interaction model, was designed by our designer at the time.

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