cl_gui_alv_tree - isue with combining the context menu and link click events

I am using the cl_gui_alv_tree with parameter item_selection set to false. When I register the following events I get a short dump from the method SET_REGISTERED_EVENTS (I can register either one - not both).

EVENTID_NODE_CONTEXT_MENU_REQ

EVENTID_LINK_CLICK

Changing item_selection to true allows me to register both events but the context menu no longer works, I can only click on links.