Automatically dynamically preview posts of the correct type in archive template query in the site editor

A temporary workaround until this is resolved, is:

  1. Switch off “Inherit query from URL”
  2. Open the query editor and set the post type to the correct custom post type
  3. Immediately switch “Inherit query from URL” back on again

It still retains the custom post type you set and displays the correct posts in the Query Template.