Multiple incoming Channels allowed for InputPorts of parent Components
Current Status
AF3 Compositors prevent InputPorts to have multiple incoming Channels. While the prevention mechanism works for components of the same level (see mouse pointer in the screenshot), it does NOT work if the target Port of new channel is an OutputPort of the parent Component (see screenshot) and which appears as an InputPort to the inner parts of the parent component. Semantics of such a model is not clear.
Proposed solution
Modify the compositors to allow only one incoming channel to OutputPorts if their source port is contained in a contained component of the “parent component”.
(from redmine: issue id 2863, created on 2017-03-02, closed on 2017-05-15)