GML: Issue with 'datetime' formatting in GML output at a certain tag-level

[Sverre-Iversen]

If you look at the XML (GML) structure output below, I get the wrong 'datetime' format ('2021-11-23 11:52:40') at the bottom red dot (eksternLeveringDato), and this value is nested one extra level than the others above. At the top red dots I get the correct formatting. It's nothing wrong with the the database field vaules. 'eksternLeveringDato' it's shown correrctly in HTML and GeoJSON mode ('2021-11-23T11:52:40Z') but not in GML. Using ldproxy version 3.6.3