Calendar: "CalendarResource" table is updated for each login

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.0.X, 7.1.X, 7.2.X, Master
• Fix Version/s: 7.0.0 DXP FP86, 7.0.X, 7.1.10 DXP FP13, 7.1.X, 7.2.10 DXP FP1, 7.2.X, 7.2.1 CE GA2, Master
• Component/s: Calendar
• Labels:
  • ee-ts
  • liferay-fixpack-de-86-7010
  • liferay-fixpack-dxp-1-7210
  • liferay-fixpack-dxp-13-7110
• Branch Version/s:
  7.2.x, 7.1.x, 7.0.x
• Backported to Branch:
  Committed
• Sprint: Workflow_7.2_SP1_02, Workflow_7.2_SP1_03
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/76156

Summary
When the data from "user_" table changes, it triggers an update to "CalendarResource" table causing the degradation of database resources which impacts on Calendar portlet's performance when my logins are done in parallel.

Steps to reproduce:

1. Start a clean bundle
2. Login as administrator
3. Add Calendar portlet to homepage
4. Note some records are created in "CalendarResource" table
5. Logout and login again with the same user
6. Note CalendarResource's modifiedDate gets updated

Actual result: 
CalendarResource's modifiedDate gets updated.

Expected result:
CalendarResource's modifiedDate should be updated only when necessary

Based on: PTR-1079