Cannot import contacts without FNs.

[RokeJulianLockhart]

Describe the bug

Like Kozea/Radicale#752 (comment) describes, I'm unable to import contact entries without FNs (in a .VCF which contains multiple entries, with and without FNs).

Steps to reproduce

1. Create an applicable contact, like:

   BEGIN:VCARD
   VERSION:3.0
   PRODID;VALUE=TEXT:ez-vcard 0.11.3
   UID:47759cae-7de1-4ae5-82c1-b3bc560e90da
   REV;VALUE=DATE-AND-OR-TIME:20240224T161008Z
   END:VCARD
   

   ...(with FN: absent).

2. Export all contacts (using https://wim.nl.tab.digital./remote.php/dav/addressbooks/users/rokejulianlockhart/sf2zs2/?export# at https://wim.nl.tab.digital./apps/contacts/All%20contacts/06f18e31-590e-4635-8309-98ff9e8ccfe9~sf2znd#).

3. Delete all contacts.

4. Attempt to import all contacts.

Expected behavior

I should be able to import them.

Actual behavior

I'm unable to import them, because those without FNs are considered to be erroneous.

Contact version

Unknown, but at most, https://github.com/nextcloud/contacts/releases/tag/v5.0.1.

Operating system

cpe:/o:canonical:ubuntu

PHP engine version

None

Web server

nginx/1.18.0

Database

{"needsDbUpgrade": false} // https://wim.nl.tab.digital/status.php

Additional info

As https://poe.com./s/ncCrUStKKizgXNtuPrUw# explains, BEGIN:VCARD((?:(?!END:VCARD|FN:).|\n)*)END:VCARD can be used to identify faulty entries at https://regex101.com./# and in code-insiders-1.91.0-1718259485.el8.rpm.

[hamza221]

Can you please provide screenshots/screencasts or code links instead of links from instances

[hamza221]

We support VCard V3 and V4 Where FN is mandatory

[RokeJulianLockhart]

#3980 (comment)

I did provide code. It's in #3980 (comment):

BEGIN:VCARD
VERSION:3.0
PRODID;VALUE=TEXT:ez-vcard 0.11.3
UID:47759cae-7de1-4ae5-82c1-b3bc560e90da
REV;VALUE=DATE-AND-OR-TIME:20240224T161008Z
END:VCARD

Irrespective, I don't see how the URIs relate.