last_name field is overridden in edge case

[ftrojahn]

Bug Report

Current Behavior Trying to use $GLOBALS['TCA']['tt_address']['ctrl']['sortby'] = 'last_name'; in Configuration/TCA/Overrides in an own sitepackage extension.

So, IMHO we should get the backend list sorted by last_name field.

Error: When creating a new address record, all existing records get the number of the sorting field, e.g. 512, written to the last_name field (don't try this on your production system!).

Expected behavior/output last_name is left as-is.

Environment

• TYPO3 version(s): 10.4.4
• tt_address version: 5.1.2 (tried git master, too)
• Is your TYPO3 installation set up with Composer (Composer Mode): no
• OS: ddev, Debian

Possible Solution The sorting field should only get populated in default case, i.e. if `$GLOBALS['TCA']['tt_address']['ctrl']['sortby'] == 'sorting' or default value.

[neufeind]

That settings specifies which fieldname is used to store the sorting. So if you set it to last_name that's where the sorting-values will be stored in. Works as designed. Please see the TCA-documentation. https://docs.typo3.org/m/typo3/reference-tca/master/en-us/Ctrl/Index.html