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Submitting Array in requestBody with "application/x-www-form-urlencoded" ignores the explode encoding parameter

See original GitHub issue

I am attaching an example where explode is set to true in both the parameter block and the requestBody and they behave differently.

The example midway down this page mentions that you can specify the explode param in the encoding block for the requestBody - https://swagger.io/docs/specification/describing-request-body/

I’m using that exact example, except setting explode to true.

{
  "openapi" : "3.0.0",
  "info" : {
    "version" : "1.0.0",
    "title" : "Swagger Petstore",
    "license" : {
      "name" : "MIT"
    }
  },
  "servers" : [ {
    "url" : "http://petstore.swagger.io/v1"
  } ],
  "paths" : {
    "/pets" : {
      "post" : {
        "summary" : "Create a pet",
        "operationId" : "createPets",
        "tags" : [ "pets" ],
        "parameters" : [
          {
            "name" : "limit",
            "in" : "query",
            "description" : "How many items to return at one time (max 100)",
            "required" : false,
            "schema" : {
              "type" : "array",
              "items" : {
                "type": "string"
              }
            },
            "style": "form",
            "explode": true
          }
        ],
        "requestBody" : {
          "content" : {
            "application/x-www-form-urlencoded" : {
              "schema" : {  
                "type" : "object",
                "properties" : {
                  "color" : {
                    "type" : "array",
                    "items" : {
                      "type" : "string"
                    }
                  }
                }
              },
              "encoding" : {
                "color" : {
                  "style" : "form",
                  "explode" : true
                }
              }
            }
          }
        },
        "responses" : {
          "201" : {
            "description" : "Null response"
          }
        }
      }
    }
  }
}