TYPO3 Core

The solution for #87817 works only for empty defaults, not for non-empty defaults. The default must be allowed to be non-empty and still allow the type parameter for different typeNum.

  PageTypeSuffix:
    type: PageType
    default: '.html'
    index: 'index'
    map: []

Currently links to type > 0 will just create urls like /my/path/to/site.html - but of course they still need to append the type parameter ?type=123 to work correctly.

This is because resolveValue() returns the default and afterwards it is checked if the returned value is empty (which it never is if a default is set).