When editing Repeating Events using Entire Series, an extra event displays

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.1.X, Master
• Fix Version/s: 7.1.10 DXP FP18, 7.1.10.5 SP5, 7.1.X, Master
• Component/s: Calendar
• Labels:
  • liferay-dxp-71-sp5
  • liferay-fixpack-dxp-18-7110
• Branch Version/s:
  7.1.x
• Backported to Branch:
  Committed
• Story Points: 0.25
• Fix Priority: 5
• Sprint: Workflow_7.2_04
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/66565

Steps to reproduce:

1. Add a calendar to the page.
2. Click Add Event button.
3. Choose all day event.
4. Click Repeat checkbox.
5. In the pop-up window, choose weekly of the repeat field, click Done.
6. Navigate to month view and Drag and drop the repeat event to one day later and click on the "Entire Series" button in the popup.

Expected result:
All the repeat events should display in the correct day. No extra event displays.

Actual result:
An extra event displays in the original day.

       7. Drag and drop the repeat event to the previous day and click on the "Entire Series" button in the popup.

Expected result:
All the repeat events should display in the correct day.

Actual result:
Other events display correctly except for the first event.