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Fix undefined in v-on handlers for vue 3 migration

Artur Fedorov requested to merge 428635-vue3-migration-fix-on-handler into master

What does this MR do and why?

This MR resolves #428635 (closed)

This MR fixes undefined in v-on handler

Vue 3 can not accept undefined. It was replaced by empty object

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*** NO VISUAL CHANGES ***

How to set up and validate locally

Numbered steps to set up and validate the change are strongly suggested.

  1. You can run script from parent epic on master, find [Vue warn]: v-on with no argument expects an object value.,
  2. Checkout branch
  3. Run script again
  4. Make sure warning is gone

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

Related to #428635 (closed)

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