interactionManager.setBlockReachDistance(double) Effectively Unused (Cannot increase reach)

[Zetal]

Hey there! Here to bother you.

EntityPlayerMP emp = (EntityPlayerMP) player;
double reach = emp.interactionManager.getBlockReachDistance();
reach += 500.0D;
emp.interactionManager.setBlockReachDistance(reach);

This (basically) does nothing. While it does change the value, the value itself has no effect on the game due to the fact that the client uses PlayerControllerMP to determine blockreach distance, which takes priority.

 

I would like some guidance on how to pursue arbitrary changes to player reach distance. Thank you.