Document translations are not marked correctly with translation=1 in the database of a newly created wiki

Create a new wiki. Then run this script either in the main wiki or in the newly created wiki:

{{velocity}}
* $services.query.hql("where doc.space = 'Sandbox' and doc.translation = 0").setWiki('xwiki').execute()
* $services.query.hql("where doc.space = 'Sandbox' and doc.translation = 1").setWiki('xwiki').execute()
* $services.query.hql("where doc.space = 'Sandbox' and doc.translation = 0").setWiki('gang').execute()
* $services.query.hql("where doc.space = 'Sandbox' and doc.translation = 1").setWiki('gang').execute()
{{/velocity}}

The output is this:

• [Sandbox.TestPage3, Sandbox.TestPage2, Sandbox.TestPage1, Sandbox.WebPreferences, Sandbox.WebHome]
• [Sandbox.WebHome, Sandbox.WebHome, Sandbox.WebHome, Sandbox.WebHome, Sandbox.WebHome, Sandbox.WebHome, Sandbox.WebHome, Sandbox.WebHome, Sandbox.WebHome, Sandbox.WebHome, Sandbox.WebHome]
• [Sandbox.WebHome, Sandbox.WebHome, Sandbox.WebPreferences, Sandbox.WebHome, Sandbox.WebHome, Sandbox.WebHome, Sandbox.TestPage1, Sandbox.WebHome, Sandbox.WebHome, Sandbox.WebHome, Sandbox.WebHome, Sandbox.WebHome, Sandbox.WebHome, Sandbox.WebHome, Sandbox.TestPage2, Sandbox.TestPage3]
• []

It seems the translation field is not set correctly in the database of the newly created wiki.

I haven't noticed any issues, but I've used this field (translation) in my queries in the past and those queries will not return the expected results for the subwiki.

I tested both using XWiki 5.4.5 and 6.2.