validate repair component should not deduplicate properties when properties must appear exactly once

[cedtaz]

The validate function with repair mode add automatically a property when the property must appear exactly once... like UID in VEVENT or VCARD.

A VCARD like this (with 2 UID for example) :

BEGIN:VCARD
VERSION:3.0
UID:a73404dd-7534-4151-a949-49711bef8422
UID:sabre-vobject-39afbdfc-47cf-489e-a1a3-6a8e6cc6b4f6
FN:Paul Martin
N:Martin;Paul;;;
END:VCARD

After a validate in repair mode, this VCARD looks like :

BEGIN:VCARD
VERSION:3.0
UID:a73404dd-7534-4151-a949-49711bef8422
UID:sabre-vobject-39afbdfc-47cf-489e-a1a3-6a8e6cc6b4f6
UID:sabre-vobject-101f5d63-572f-44c6-90e5-ef6cb4bf385d
...
FN:Paul Martin
N:Martin;Paul;;;
END:VCARD

This can be very problematic. The test is not strict enough :
1 !== $propertyCounters[$propName]

So we need to remove the old parameters when the number of properties is greater than 1. In fact, UID is a property which must appear exactly once.

Thanks.