On a demo bundle, (ce or dxcore),  page templates with "renderType: spa" are not available to be selected when one creates a new page in the pages app. This is an obstacle for developers trying out the SPA feature.

Be default, on the demo bundles, provisioned templates with "renderType: spa" should be available.

To reproduce:

• Install CE demo bundle
• Create a page template (or use an existing page template) and set the renderType:spa and 
  class: info.magnolia.rendering.spa.renderer.SpaRenderableDefinition
• Open pages app
• Add page
• Note that your page template is not available.

On 6.2.0 this problem was not present, one was able to add SPA pages by default. 

This seems to be due to the site configuration.

On the ce demo bundle, the enableAllWithRenderType node only has freemarker and jsp values.