[Debian-iot-maintainers] Bug#1035503: Bug#1035503: glewlwyd-common: prompting due to modified conffiles which were not modified by the user: /etc/glewlwyd/config.json

[Andreas Beckmann]

Did I get this right:
in bullseye, glewlwyd created /etc/glewlwyd/config.json by copying 
/usr/share/glewlwyd/templates/config.json without modifying it
in bookworm glewlwyd-common ships it as a conffile (with different content).

So glewlwyd-common needs a versioned Breaks against the last glewlwyd 
version that managed that file.

In the -common preinst if upgrading (or on initial install) check the 
exisiting (not yet owned by us) file for a known hash and move it aside 
if it matches.


Andreas