function callHandler(oMenuItem, oEventItem) {
			let aSelection;
			if (oMenuItem.propagatingControl) {
				aSelection = [OverlayRegistry.getOverlay(oMenuItem.propagatingControl)];
			} else {
				aSelection = oMenuItem.responsible || this.getSelectedOverlays() || [];
			}
			assert(aSelection.length > 0, "sap.ui.rta - Opening context menu, with empty selection - check event order");
			const mPropertiesBag = {};
			mPropertiesBag.eventItem = oEventItem;
			mPropertiesBag.contextElement = this.getContextElement();
			oMenuItem.handler(aSelection, mPropertiesBag);
		}
Called when a context menu item gets selected by user
@param {sap.ui.base.Event} oEventItem event object
@override
@private