Deleting Contacts From One Address Book Also Deletes In All Other Address Books
I wanted to clean up my contacts. So I went to the home screen of the Simple-Contacts app, selected a filter to show every address book except my Nextcloud synchronized contacts, and then I selected all contacts and deleted them. After that, my Nextcloud contacts were deleted, too. I guess this is because of contact deduplication. IMHO this behaviour is dangerous, as it's not clear, that this action will also delete contacts, that are currently hidden by a filter. Please let me know if you need more information.
The same happens when you choose to list all contacts separately (not merged). Dangerous as well!
The only way to delete a contact from an explicit adressbook is to list your contacts merged then open the contact, then inside this open the explicit adressbook contact and delete this.
@gryban1 SMT apps were sold. Fork is here https://github.com/FossifyOrg First release in 1-2 weeks