Beside the birthday of a contact (BDAY in VCF), android supports additional dates, such as an anniversary. Until now (DAVdroid 0.5.3-alpha), these fields get lost during synchronization of a contact which uses these fields.
The export feature of the android contacts app generates an VCF file including this information in the form:
X-ANDROID-CUSTOM:vnd.android.cursor.item/contact_event;2013-01-01;1;;;;;;;;;;;;;
This entry represents an anniversary (the 1 at the end) with date 2013-01-01.
It would be very nice, if DAVdroid could implement this field type in order to prevent lost data.
Thank you very much!
