Exported contacts from nextcloud creates multiple lines of PRODID in same element, which fails during Import

[devz3r0]

Describe the bug

I am exporting my 78 Contacts from Account A and importing into account B. Most are imported however 2 failed. During investigation of the logs, the 2 failed with: Validation error in vCard: PRODID MUST NOT appear more than once in a VCARD component

Steps to reproduce

1. Go into account A and export the contacts from the nextcloud
2. go into account B on the same server and import that just exported file
3. witness the error.

Expected behavior

all contacts are imported from the just exported file.

Actual behavior

Validation error in vCard: PRODID MUST NOT appear more than once in a VCARD component

the output in thee file from a working contact entry looks like:

BEGIN:VCARD
VERSION:4.0
PRODID:+//IDN bitfire.at//DAVx5/4.3.5.1-gplay ez-vcard/0.12.0
UID:104608ad-dfd8-47f4-a887-c78eebbb0074
FN:<REDACTED>
N:<REDACTED>
TEL;TYPE=cell:+<REDACTED>
REV:20230802T142130Z
END:VCARD

one of the 2 errornous entries:

BEGIN:VCARD
VERSION:3.0
VERSION:3.0
VERSION:3.0
VERSION:3.0
VERSION:3.0
PRODID:-//ownCloud//NONSGML Contacts 0.5.0.0//EN
PRODID:-//Sabre//Sabre VObject 3.4.7//EN
PRODID:-//ownCloud//NONSGML Contacts 0.5.0.0//EN
N:<REDACTED>
FN:<REDACTED>
TEL;TYPE=VOICE,CELL:+<REDACTED>
REV:2015-12-28T10:51:09+00:00
UID:1030bc3a-e24b-41ee-a2ea-26ed2cf9e32b
END:VCARD

Contact version

6.0.0

Operating system

ubuntu 22.04

PHP engine version

PHP 8.3

Web server

Apache (supported)

Database

MySQL

Additional info

No response