Event listeners for "Last submission script" get triggered by duplicated comment instances

[patritzenfeld]

The script is run for every comment, so the event is also emitted after each of these complete. This might trip up something timing sensitive to execute too early.

Options:

1. Event names are unique, maybe somehow derived from the unique timestamp that is used in the comments. That means I need to also replace the event name everywhere in the script on copy.
2. Consolidate all value insertions into a single global routine, instead of a bunch of copies. Ned to assess first how complicated that actually is.