Issue in logic app custom action/trigger with dynamic schema.

Question

We have implemented logic app custom action/trigger to show fields based on value selected in drop-down using dynamic schema as mentioned in https://learn.microsoft.com/en-us/connectors/custom-connectors/openapi-extensions#use-dynamic-schema. Now initially when I choose car it loads fields related to car, if I change dropdown value to food, it loads fields related to food and car fields which are previously loading. I want to load fields related to dropdown selected value only.