There's no reason for us to notify the frontend when an event listener is added/removed for EVERY node, as we only have UI for the currently selected node.
Created attachment 367390 [details]
Comment on attachment 367390 [details]
Clearing flags on attachment: 367390
Committed r244267: <https://trac.webkit.org/changeset/244267>
All reviewed patches have been landed. Closing bug.