Extensions applied to a Master and a Page in a Site Template are not present when creating a site from that site template

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: Master
• Fix Version/s: 7.4.3.44 CE GA44, Master
• Component/s: Pages > Page Editor
• Labels:
  • 7.4-known-issue-until-remove-flag
  • 7.4.13-u44
  • pt-app-security-review
  • pt-upgrade-review
• Fix Priority: 4
• Epic Link: Apply key Theme Extensions to customize page look & feel and behavior
• Git Pull Request: https://github.com/liferay-echo/liferay-portal/pull/9626

When I create a Site Template and I define extensions to be applied to its pages (Master Page, pages using that Master page), and then I create a site using this site template, extensions do not appear in the Master or Pages of the created site.

Steps to reproduce:

• Create some extensions: Theme CSS, Global CSS, Global Javascript
• Create a Site Template
• Create a Master Page in the Site Template, go to page design options and add extensions to it (e.g. Theme CSS extension and JS extension)
• Inside the Site Template, create a page using this Master. Extensions in MAster appear as read-only. 
• Add new extensions to this page.
• Now, create a site starting from this site template.

Expected result:

• In the created site, I have a Master Page that already contains the extensions assigned in the Site Template
• The Page I created has the extensions of its Master and the extensions added to it.

Actual behavior:

• The Master page of the site does not have any extensions (no Theme CSS, Global CSS or Global JS).
• The Page created from this Master does not have any extensions applied either.

 

Additional note:

• Exporting a site that contains pages with Client Extensions assigned, and then import it back on a new site, pages lose their extensions as well.
• if the import happens into a new instance, not having the extensions provisioned, the import process fails.