Hello. In this other bug, which affected the same packages, I noticed that the postinst was copying files directly in /usr/lib, which I warned as "not very orthodox":
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1069097#112 The fix that we applied to this other bug was more a mitigation than a real fix (btw: it has not happened again after the mitigation, so thanks a lot), but given the present bug and the /usr/lib thing, I have the feeling that the package needs some "structural change", which maybe would have done the above mitigation not necessary at all. Thanks.
