Later registered events with class method will not be registered on the instance too

[drqCode]

Later registered events with class method will not be registered on the instance too, because the duplication of events and listeners is being done only when any instance method ( any that use __bus__) is called.

dry-events/lib/dry/events/publisher.rb

Lines 181 to 238 in 8094007

	# Subscribe to events.
	#
	# If the query parameter is provided, filters events by payload.
	#
	# @param [Symbol,String,Object] object_or_event_id The event identifier or a listener object
	# @param [Hash] query An optional event filter
	#
	# @return [Object] self
	#
	# @api public
	def subscribe(object_or_event_id, query = EMPTY_HASH, &block)
	if block
	__bus__.subscribe(object_or_event_id, query, &block)
	else
	__bus__.attach(object_or_event_id, query)
	end
	self
	end
	# Unsubscribe a listener
	#
	# @param [Object] listener The listener object
	#
	# @return [self]
	#
	# @api public
	def unsubscribe(listener)
	__bus__.detach(listener)
	end
	# Return true if a given listener has been subscribed to any event
	#
	# @api public
	def subscribed?(listener)
	__bus__.subscribed?(listener)
	end
	# Utility method which yields event with each of its listeners
	#
	# Listeners are already filtered out when query was provided during
	# subscription
	#
	# @param [Symbol,String] event_id The event identifier
	# param [Hash] payload An optional payload
	#
	# @api public
	def process(event_id, payload = EMPTY_HASH, &block)
	__bus__.process(event_id, payload, &block)
	end
	# Internal event bus
	#
	# @return [Bus]
	#
	# @api private
	def __bus__
	@__bus__ ||= self.class.new_bus
	end

For example, given that dry-monitor registers :sql event with the .register_event(:name):

https://github.com/dry-rb/dry-monitor/blob/7a0625c199c8cbd8d053956b2735d4074a22b0dd/lib/dry/monitor/sql/logger.rb#L5-L10

loading the sql dry-monitor extension after an instance of Publisher was created and consumed will not registers new events if the entire app uses the same instance of 'Publisher' (Dry::Web::Container creates an instance of Notifications publisher that is supposed to be used globally, at least for logging)