TypeError when opening site selector after saving permissions iframe

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.0.X EE, Master
• Fix Version/s: 7.0.0 DXP FP23, 7.0.X EE, 7.0.4 CE GA5, 7.1.X, Master
• Component/s: Frontend Infrastructure
• Labels:
  • QA-AUTOMATION
  • liferay-digital-enterprise-70-sp5
  • liferay-fixpack-de-23-7010
• Branch Version/s:
  7.0.x
• Backported to Branch:
  Committed
• Fix Priority: 4
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/50200
• QA Test Name:
  • PGDocumentsandmedia#viewSearchResultsForChildObjectRespectsParentFolderPermissions
  • WebcontentUsecase#AddImageToWebContentViaItemSelector
  • XSLContent#AddXSL
  • XSLContent#ConfigurePortletWithCorruptXML
  • XSLContent#ConfigurePortletWithCorruptXSL
  • XSLContent#ConfigurePortletWithIncorrectVersionXmlAndXsl
• QA Test Score: 24

Steps to reproduce issue:

1. Navigate to Content > Web Content
2. Add and publish web content article
3. Open the kebab menu for the article and select "Permissions"
4. Click "Save" in the Permissions iframe
5. In the Product Menu, click the compass icon to open the site selector

Expected result: No JavaScript errors occur when opening the site selector
Actual result: TypeError thrown when opening the site selector after saving in the permissions iframe:

TypeError: computed is null
http://localhost:8080/o/frontend-js-web/aui/transition/transition.js
Line 320

Note: Functionality is not impacted by the TypeError.

Reproduced on:
Tomcat 8.0.32 + MySQL 5.7
Portal Master GIT ID: 07ee279078d96e9d1291d226ea56f01275365d2a

Reproduced on:
Tomcat 8.0.32 + MySQL 5.7
Portal ee-7.0.x GIT ID: 39b628f5d0679f67186b0a8f1eab658fcbc5a9d3