message is not a valid property of threadFlowLocation

[Mcdostone]

I tried to validate the SARIF file of the section Beyond the basics - Code flows using https://sarifweb.azurewebsites.net/Validation but it failed.

According to 3.38 threadFlowLocation object, there is no such message property allowed for the threadFlowLocation object.

Is it something you plan to add to the spec in the future? I would be interested to add a message to a specific thread flow location!