[Hotfix] 19.12-15 hotfix

All yesterday deployed systems have received 19.12-15. changes since 19.12-14: SWI XPUR-239 -- -- Sören Pestner - Entwickler - TraSo GmbH Nonnenstraße 42 D-04229 Leipzig telefon: +49 341 355 740 - 49 email: s.pestner@traso.de Geschäftsführer: Haiko Gerdes Handelsregister: Amtsgericht Leipzig (HRB 21850)