Fixes #19044 - detect '' and convert to '0000-00-00'. Also change default date... (!754) · Merge requests · typo3 / qfq

Fixes #19044 - detect '' and convert to '0000-00-00'. Also change default date '2000-01-01' to '0000-00-00' - hope this does not break anything.

Fixes #19044 - detect '' and convert to '0000-00-00'. Also change default date...