vdirsyncer auth failures with baikal

I am using Baïkal as Cal- and CardDAV server.

Today I tried to sync the calendars using vdirsyncer, but it failed to connect to my baikal server always giving me auth errors like that:

$ vdirsyncer discover
Discovering collections for pair my_calendars
martin_cal_local:
warning: Failed to discover collections for martin_cal_remote, use `-vdebug` to see the full traceback.
error: Unknown error occurred: 401, message='Unauthorized', url=URL('https://example.de/dav.php')
error: Use `-vdebug` to see the full traceback.

Also from the -vdebug messages I could not make sense of it, but eventually NICO’S BLOG pointed into the correct direction: vdirsyncer is simply no able to do the digest auth… (and probably will never implement the deprecated standard)

So the solution is to change that to basic auth in baikal’s settings.

Thanks Nico, whoever you are :)