Important: A hidden part of the form keeps the preset value 

Description 

Both project lists applied the Categories, the Sorting and the Active state of the content element only to a request without any selection of the visitor. Once a visitor used the visible part of the form, every part the editor hid lost its preset as well:

• With Show filter options switched off and another part shown, a visitor who changed the sorting or the state got the projects of every category instead of those of the preset categories.
• With Show sorting options switched off, a visitor who chose a category or a state got the projects sorted by title, A to Z, instead of by the preset sorting.
• With Show active state options switched off, a visitor who changed the sorting or chose a category got the projects in every state, the completed ones of a list of running projects included.

A part of the form the content element hides now keeps the value of the content element. The sorting of hidden sorting selects and the state of a hidden state select are always the preset ones, also where a link or a hand-made URL carries another value. The preset categories of hidden category selects always apply. Categories a submission, a link or a hand-made URL carries for such a list are added to them, so they can narrow the list further but never replace a preset category. For a part of the form the content element shows, the selection of the visitor applies as before.

Impact 

• A list preset to the active projects with the state select hidden shows only active projects, also after the visitor chose a category or changed the sorting.
• A list with hidden category selects keeps its preset categories, and a list with hidden sorting selects keeps its preset sorting, when the visitor uses the rest of the form. A link that filters a list with hidden category selects by another category shows the projects that carry the preset categories and that category.
• A list with hidden category selects and no preset categories is still filtered by the categories of a link, as before.
• An installation that hid the whole form to keep one preset can show the other parts again.
• Behaviour is identical on every supported TYPO3 version.