Relationship of DynamicConstraints of Lateral/LongitudinalDistanceAction and Performance of Vehicle

As part of discussions in the OSI TP working group the following issue cropped up:

The LateralDistanceAction and LongitudianlDistanceAction have an optional DynamicsConstraints element specifying constraints on acceleration/decelaration/speed that should apply during the action. It is currently not specified how these will interact with other constraints on the performance of the vehicle, e.g. those specified in the Performance element of the vehicle definition.

One could assume that the constraints in the action apply in addition to any other constraints, or they could supersede those; either approach would make sense for certain use cases, however as best I can tell the spec currently does not say which it is.

This should IMHO be clarified one way or another and/or a boolean flag might also be introduced to specify whether they should supercede or not.