Backslashes (Escaped slashes) in URL's on imports from google

Describe the bug

I'd import my addresslist from Google.
On Google I've exported it as VCARD :

If I import those vcs file into nextcloud/contacts, all / are escaped:

If I look into the vcs, I see, that slashes are also escaped there, but only once:

It would be nice, if contact could recognize such escape characters, and remove them

Steps to reproduce

1. Create an address entry with an http://xyz.com in your google contacts
2. Export an addressbook as VCS from Google
3. Import it to nextcloud contacts
4. see error in contacts address entry

Expected behavior

slashes should not be escaped in contacts

Actual behavior

slashes are escaped

Contact version

4.1.0

Operating system

didn't found.. as it's a managed one by hetzner. BTW, isn't there a way to see that in nextcloud gui?

PHP engine version

No response

Web server

No response

Database

No response

Operating system

No response

List of activated Apps

Can't run this command. 
I do have an managed service on Hetnzer: https://www.hetzner.com/storage/storage-share?country=de
So I don't have access to the server below.

Couldn't you create such an URL to output those list like the following section "Nextcloud Signing status"?: https://yournextcloud.tld/index.php/settings/integrity/failed

That would make things easier for bugreporters.

Nextcloud Signing status

No errors have been found.

Configuration report

Same here as above, no access to cli.

Additional info

No response

The issue names no source file or test. Start by reproducing a Google VCS import containing an http:// URL, then trace how the imported contact value is parsed; done means URL slashes remain unescaped in the contact address.