Email notifications not triggered for Knowledge Articles in Xanadu.DescriptionEmail notifications not triggered for Knowledge Articles in Xanadu and onwards as some KM artifacts (Activity type and Subscribable object) records in knowledge advance plugin being overridden by activity subscription plugin. After knowledge advance plugin was made OOB in Xanadu release, the xml’s in the activity subscription plugin demo data started overriding the artifacts in knowledge advance plugins due to having same id in both plugins.Steps to Reproduce 1. Please select any knowledge base whcih are under subscriptions.https://<instancename>/sn_actsub_subobject_stream_list.do?sysparm_query=sub_obj_name%3Dkb_knowledge_base&sysparm_view=2.Publish any knowledge article from the selected knowledge base.3.KM Subscription: Article published is not triggering to the subscriber. We can in the Email log tab in the related list of the Notification.Notification is not getting triggered for "KM Subscription: Article published"https://<instancename>/nav_to.do?uri=sysevent_email_action.do?sys_id=5ee59f0167a03200d358bb2d07415a92%26sysparm_view=advancededitedThere are 2 scenarios which have been observed till now caused by this overriding issue.1. Upgrade scenario :- When customers upgraded to Xanadu and deleted demo data a. Provision a Washington instance. b. Install the com.snc.knowledge_advanced plugin. c. Observe that Activity type "KM Article is published" and Subscribable object Knowledge Article are present. d. Upgrade to Xanadu. e. Delete the demo data. f. Observe that Activity type "KM Article is published" and Subscribable object Knowledge Article that were present are now deleted.2. Zboot scenario :- For new customers on Xanadu. a. Provision a Xanadu instance. b. Open record Activity type "KM Article is published". c. Observe that additional_field1 and object_field fields of this record is “number” (ideally should be sys_id). d. Open record Subscribable object "KMArticle". e. Observe that name of this record is “KMArticle” (ideally should be “Knowledge Articles”).WorkaroundRepairing the Knowledge Advanced (com.snc.knowledge_advanced) plugin will fix the issue.Related Problem: PRB1849608