[Bug]: "InvalidOperationException: Sequence contains more than one matching element" in Swagger when using multiple [FromForm] parameters in Minimal API about swashbuckle.aspnetcore

[jgarciadelanoceda]

@martincostello you can close this issue, the last PR included this issue

[jgarciadelanoceda]

Reviewing this item it seems to be due to this PR. #2441. For MinimalApis the Schema is being generated:

"multipart/form-data": {
              "schema": {
                "$ref": "#/components/schemas/Person"
              }
            },
            "application/x-www-form-urlencoded": {
              "schema": {
                "$ref": "#/components/schemas/Person"
              }
            }

This code block (The ref is not build for controllers because the controllers do not have the OpenApiOperation attribute)

I do not fully understand why the PR introduced the limit of one FromForm parameter in the request