System configuration FormNavigatorConfiguration.formNavigatorEntryKeys() has String[] type but it is exported to config file as String

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.1.X, 7.2.X, Master
• Fix Version/s: 7.1.10 DXP FP12, 7.1.X, Master
• Component/s: Portal Configuration > System Settings
• Labels:
  • ee-ts
  • liferay-fixpack-dxp-12-7110
• Branch Version/s:
  7.1.x
• Backported to Branch:
  Committed
• Story Points: 0.25
• Fix Priority: 4
• Sprint: U&SM | S02 Sprint 18
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/73067

Steps to reproduce

1. Go to Control Panel => Configuration => System Settings => Forms => Form Navigator
2. Enter a Form entry:
   • Form Navigator ID: journal.form
   • Form Navigator Entry Keys: content,metadata,schedule,related-assets
3. Export Entries from kebab menu
4. Check generated file
   • Expected content:

     formNavigatorEntryKeys=[ \
       "content,metadata,schedule,related-assets", \
       ]
     formNavigatorId="journal.form"

   • Wrong content:

     formNavigatorEntryKeys="content,metadata,schedule,related-assets"
     formNavigatorId="journal.form"

Note: If you try importing config file in other Liferay instance, the file with wrong format won't work fine.
You can check it if you import the configuration in a empty Liferay and after that, you go to a site => Content => Web Content.
With the wrong config file, only last configured section will be displayed in user interface