For me it worked to use https://play.google.com/store/apps/details?id=com.google.android.contacts (Google Contacts) instead of the Contacts-App that comes with the Sony Android version. See https://forums.bitfire.at/topic/1678/davdroid-does-not-store-name-only-number-when-creating-new-contact-posteo-de/2
Reporting issues page still refers to github/issues
Thanks. I have now removed the
CONTRIBUTING.mdfile because it didn’t useful instructions to contribute anyway. The only useful information it contained was what’s required to diagnose a problem, which I have moved to this thread.