I have an activity where I check for certain fields using Property-Validate and set the error message. I check for 2 fields by selecting the "Required" checkbox. Later I capture these error message using @getMessagesAll(Primary) and set it on the Response back to the REST service caller.

1. When I send a request without 1 field I get error message that both fields are required eventhough the 2nd field is there in the json.

2. When I send a 2nd request with all fields, I still get the same error message eventhough all 2 fields are there in the json.

How can I reset or clear this error messages before this step is called?