At a guess, the source of this bug is probably similar to this one from a year ago: https://bugs.launchpad.net/ubuntu/+source/frescobaldi/+bug/939196
... i.e. that python-poppler-qt4 is compiled for the wrong python-sip. This probably means that a dependency on python-sip should be added to python-poppler-qt4 both here and in Debian.
At a guess, the source of this bug is probably similar to this one from a year ago: /bugs.launchpad .net/ubuntu/ +source/ frescobaldi/ +bug/939196
https:/
... i.e. that python-poppler-qt4 is compiled for the wrong python-sip. This probably means that a dependency on python-sip should be added to python-poppler-qt4 both here and in Debian.