Event/Contribution amounts are duplicated when the form is saved
As an admin, saving the "amounts" form of either an event or contribution page, will duplicate the amounts.
- Go to: https://dmaster.demo.civicrm.org/civicrm/event/manage/fee?reset=1&action=update&id=3
- Click 'save'
This seems to be a regression in the 5.18 RC.