spthiel authored Jul 24, 2020 and maddy2101 committed Nov 10, 2020

The renderType `selectCheckbox` allows for grouping of items,
which are rendered as collapsed per default.

A new TCA setting now allows to define this behavior for all
groups at once. By adding the new setting `expandAll=true`,
all groups are initially expanded. If not set or set to FALSE
the current behvahiour remains and all groups are collapsed.

Releases: master
Resolves: #91859
Change-Id: I9db196a7bfa6b1399358afdc785814425a764e80
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/65081


Tested-by: Oliver Bartsch <bo@cedev.de>
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Reviewed-by: Oliver Bartsch <bo@cedev.de>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>