Exported collection is empty when the collectionId is not exposed in URL

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: Master
• Fix Version/s: 7.4.3.5 CE GA5, 7.4.13 DXP U1, Master
• Component/s: Fragment Administration
• Labels:
  • 7.4-known-issues
  • QA-AUTOMATION
  • liferay-ga1-dxp-7413
• Fix Priority: 4
• Git Pull Request: https://github.com/liferay-echo/liferay-portal/pull/6337
• QA Test Name:
  • LocalFile.FragmentsWithReact#CannotExportReactFragmentWithCollection
• QA Test Score: 4

Steps to reproduce:

1. Navigate to Fragments admin
2. Add a new fragment collection
3. Add new fragments
4. Navigate to Fragments admin again.
5. View the current collectionId is not shown in URL.
6. Click the ellipsis button next to collection name > Export
7. Check the zip file

Actual result:
The zip file is empty.

Expected result:
The zip file should contains fragments and collection files.