Cloud username with space character

I have a Nextcloud, where we have the username scheme “forename surname” with a space between.

In the resulting caldav link the space in the username is encoded as “%20”.

If I enter it in the Caldav-URL field and press save the “%20” is removed from the link.

The effect is, that the access to the calender failed (unkown http code message).

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Ansonsten, vielen Dank für das Plugin, es würde mein Problem gut l?sen. ??