Publish to Live fails at the second time with category

• Type: Regression Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: Master
• Fix Version/s: 7.3.4 CE GA5, 7.3.5 CE GA6, 7.3.10 DXP GA1, Master
• Component/s: Staging
• Labels:
  • QA-AUTOMATION
  • echo-board-in
  • ee-ts
  • fc_20_08
• Fix Priority: 3
• Last Working Version:
  7.3.3 CE GA4
• Databases:
  MySQL 5.7
• Git Pull Request: https://github.com/liferay-echo/liferay-portal/pull/1855
• QA Test Name:
  • LocalFile.AssetPublisherPublication#StagingPublishAssetPublisherConfiguredCategoriesFilter
• QA Test Score: 3

Step to reproduce:

1. Add a new site
2. Enable Local Live
3. Navigate to Staging site
4. Add a vocabulary in staging site
5. Add a category in vocabulary
6. Click the ellipsis button on Control Menu > Staging > Publish to Live
7. Assert success message
8. Add a web content article based on Basic Web Content
9. Select the new category and Publish
10. Click the ellipsis button on Control Menu > Staging > Publish to Live

Expected Results:
The Publish to Live should succeed.

Actual Results:
The following error message is shown in popup:

An unexpected error occurred with the publication process. Please check your portal and publishing configuration.
The Category Vocabulary Vocabulary Name could not be imported because of the following error: A category vocabulary with the name Vocabulary Name already exists.

Additionally, the following error is thrown in log console.

2020-08-03 01:28:09.328 ERROR [liferay/background_task-8][BackgroundTaskMessageListener:182] Unable to execute background task
com.liferay.exportimport.kernel.lar.PortletDataException: A category vocabulary with the name Vocabulary Name already exists
        at com.liferay.exportimport.kernel.lar.BaseStagedModelDataHandler.importStagedModel(BaseStagedModelDataHandler.java:408)
        at com.liferay.exportimport.kernel.lar.StagedModelDataHandlerUtil.importStagedModel(StagedModelDataHandlerUtil.java:381)
        at com.liferay.exportimport.kernel.lar.StagedModelDataHandlerUtil.importStagedModel(StagedModelDataHandlerUtil.java:367)
        at com.liferay.exportimport.kernel.lar.StagedModelDataHandlerUtil.doImportReferenceStagedModel(StagedModelDataHandlerUtil.java:454)
        at com.liferay.exportimport.kernel.lar.StagedModelDataHandlerUtil.importReferenceStagedModel(StagedModelDataHandlerUtil.java:296)
        at com.liferay.exportimport.kernel.lar.BaseStagedModelDataHandler.importReferenceStagedModels(BaseStagedModelDataHandler.java:859)
        at com.liferay.exportimport.kernel.lar.BaseStagedModelDataHandler.importStagedModel(BaseStagedModelDataHandler.j

Reproduced on:
Tomcat 9.0.33 + MySQL 5.7. Portal master GIT ID: a20c7ad437fccefb74adcfddf2d750d339b555c2.

Cannot be reproduced on:
Tomcat 9.0.33 + MySQL 5.7. Portal 7.3.3-GA4.