That's not what listeners and events are. They're background, system stuff, that has nothing to do with user sessions. If somebody updates an issue, an event is published inside the system, listeners can react to it and do their stuff, but everything is happening entirely inside.
What you're after is probably closest to https://docs.adaptavist.com/sr4js/latest/features/behaviours which can force changes to issue forms depending on changes to fields, such as if fix version is changed, then release notes becomes mandatory, with new description, etc.
Since it's pretty much entirely javascript based, there are loopholes to avoid it, such as bulk edit, REST, or any other automations. It shouldn't be considered 100% fireproof, but it does the job unless somebody really, really wants to bypass it.
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