Returning to previous (last but one) step on AWM creation process breaks the application

STEPS TO REPRODUCE

1. Login as Admin
2. Click 'More Applications' > 'Create your own!'
3. Click 'Create Application'
4. Type a name for the new application
5. Click 'Next Step'
6. Drag some fields from the field palette
7. Click 'Next Step'
8. Choose an icon
9. Click 'Next Step'
10. On page 'Step 4 — Customize your application home page', click 'Previous Step'

EXPECTED RESULTS

The user is returned to the previous 'Step 3 — Locate your data' section of the AWM creation process.

ACTUAL RESULTS

Instead of returning the user to previous step, on page, on breadcrumb and on URL is displayed a piece of code:

removeEnd($className, 'Class')TemplateProvider

(it appears like a page in edit mode).

At this point, the options available are to save the page or to cancel it. Either way, the AWM app created is broken (it's not displayed in Applications Panel and accessing its homepage from the Navigation Panel leads to 'The requested page could not be found.'

The issue could not be reproduced on XWiki 11.0.3.