apt-file does not work for specific package

[Volker Wysk]

Hi

I've installed the nextcloud desktop client with a third-party PPA:

% cat /etc/apt/sources.list.d/nextcloud-devs-ubuntu-client.list 
deb http://ppa.launchpad.net/nextcloud-devs/client/ubuntu bionic main 

% apt update
..
OK:7 http://ppa.launchpad.net/nextcloud-devs/client/ubuntu bionic InRelease
..

The package is nextcloud-client:

% dpkg -L nextcloud-client
..
/usr/bin
/usr/bin/nextcloud
/usr/bin/nextcloudcmd
..

But apt-file won't find any files in it:

% apt-file list nextcloud-client
(no output)

"apt-file search nextcloud" doesn't work either.

But apt-file does work with other packages, for instance:

% apt-file list zip
zip: /usr/bin/zip
zip: /usr/bin/zipcloak
..

Any ideas?

Bye
Volker