User receives event reminder from both staged and live version of the calendar booking

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.0.X, Master
• Fix Version/s: 7.0.0 DXP FP33, 7.0.0 DXP SP7, 7.0.5 CE GA6, 7.0.X, 7.1.X, Master
• Component/s: Calendar, Staging
• Labels:
  • fw_code_review
  • liferay-digital-enterprise-70-sp7
  • liferay-fixpack-de-33-7010
  • staging_testing
• Branch Version/s:
  7.0.x
• Backported to Branch:
  Committed
• Fix Priority: 4
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/52425

Steps to Reproduce:

1. Set up smtp server to view emails sent from portal
2. Add a site to the Portal
3. Go to newly created site
4. Add page to site
5. Enable local live staging for the newly created site
6. Go to staged site
7. Add calendar portlet
8. Add event in the near feature and set a reminder
9. Publish to Live
10. Check event reminder email sent

Expected Result:
Only one reminder email is sent.

Actual Result:
User receives 2 reminder emails. 1 from the staged version of the site, and 1 from the live version of the site.
If the user waits additional time, 2 additional reminders will be sent. 4 total reminders will end up being sent, instead of 1.

This also causes issues in processing links to other sites that might be added to the notification template. A link will be generated that links to the current site (instead of the correct site).

Reproduced on:
7.0.x-private: 76415da881f4ed1beabadbd545f6749fcf81c5a5
Master: e5a935fb4666973af962fb879b1173af4420dd5c