fix(Designer): Fix Request Body JSON Deserialization Bug

[pranaydubeymicrosoft]

Adding context in top level comment

Adding a typecheck for output.type to ensure it's a string as expected. The current implementation permits users to provide a custom schema where output.type is an array instead of a string. This causes an issue during deserialization pictured below. This fix will block the equals comparison when output.type is not a string value.

Bug Repro:
Create a flow/logicapp in the designer using the http trigger "When an HTTP request is received" and in the schema provide something like:

{
    "type": "object",
    "properties": {
        "labels": {
            "type": "array",
            "items": {
                "type": [
                    "string",
                    "null"
                ]
            }
        }
    }
}

Try to save, note the error:

Power Automate

Logic Apps

Logic Apps Designer with fix

[hartra344]

Can you please add a proper explanation of what this change is trying to accomplish and why?