We run a few tests and I can say that commas are not "harmful" in value labels. While testing we found that we allowed ampersands that are instead a bad thing because they break tags recognition.
Thus we fixed the code to allow commas and strip ampersands.
It's an easy fix.
Edit file administrator/components/com_customproperties/models/cpfield.php
replace/modify line 421
Code:
$result = preg_replace("/[:,\/,\,]/", "", $field_or_value_label);
with
Code:
$result = preg_replace("/[\&:\/\\\]/", "", $field_or_value_label)
We'll update all CP packages in the coming days.
