As I have now traced, the change is probably associated
with updating libxml2
to 2.9.1+dfsg1-4:
https://packages.qa.debian.org/libx/libxml2.html Well done Slavek.
Yesterday I run a new build and I can confirm the problem on Jessie. Tonight I will try
out your patch as well and report back.
Anyhow before we push to git, I think we should try to find out what caused the problem.
Maybe with a few adjustment somewhere, we will not need to convert all docbooks.
I am a little short of time before the weekend, as already said :(
Cheers
Michele