Parsing vCards adds additional quotation marks in TYPE atributes

[5ila5]

var vCard = "BEGIN:VCARD\nVERSION:3.0\nPRODID:-//Apple Inc.//iOS 13.3//EN\nN:Doe;John;;;\nFN:John Doe\nEMAIL;type=INTERNET;type=HOME;type=pref:John_Doer@example.com\nTEL;type=CELL;type=VOICE;type=pref:+49 123 4567890\nitem1.ADR;type=HOME;type=pref:;;street 2A;MyCity;MyState;83465;Deutschl\n and\nBDAY;value=date:1900-01-01\nREV:2020-01-17T10:34:14Z\nX-IMAGEHASH:qYML1ZJqQnL6FyrmNWNsWw==\nEND:VCARD"


var jcalData = ICAL.parse(vCard);
vCard = new ICAL.Component(jcalData)
console.log(vCard.toString())

returns

BEGIN:VCARD
VERSION:3.0
PRODID;VALUE=TEXT:-//Apple Inc.//iOS 13.3//EN
N:Doe;John;;;
FN:John Doe
EMAIL;TYPE="INTERNET,HOME,pref":John_Doer@example.com
TEL;TYPE="CELL,VOICE,pref";VALUE=PHONE-NUMBER:+49 123 4567890
ITEM1.ADR;TYPE="HOME,pref":;;street 2A;MyCity;MyState;83465;Deutschland
BDAY;VALUE=DATE:19000101
REV;VALUE=DATE-TIME:20200117T103414Z
X-IMAGEHASH:qYML1ZJqQnL6FyrmNWNsWw==
END:VCARD

Which has quotation marks for the Type parameter of EMAIL an TEL
I encountered this because i wanted to diagnose an error with Nextcloud where CardDav would display additional quotation marks
nextcloud/server#25485
nextcloud/contacts#2866

I had this issue only when importing where this library is Used:
https://github.com/nextcloud/contacts/blob/5fd5d688d93d65b1079906e92eb31da65917b98d/src/models/contact.js#L61-L72

Edited:
the above code is called in followed by
vCard.toString()
https://github.com/nextcloud/contacts/blob/5fd5d688d93d65b1079906e92eb31da65917b98d/src/store/addressbooks.js#L410-L424

[darktrojan]

@kewisch Does this make sense?

AFAICT, properties that need every value quoted have URI values and therefore get quoted because of the :, and properties that don't the only possible values are simple strings (cell, voice, internet) etc. and wouldn't get quoted. Is there some case I'm missing?

[kewisch]

@darktrojan Can we close this given #555 is merged?

[github-actions]

It looks like we haven't heard back on this issue, therefore we are closing this issue. If this problem persists in the latest version of ical.js, please re-open this issue.