qtiplot crashes upon upgrade from xenial to bionic

[Analabha Roy]

When I upgraded from Xenial to Bionic, qtiplot was updated to the version in the bionic repository (0.9.8.9-17), as did all its dependencies. Upon launch, it segfaults. Note that this may be a qt4 problem, as a couple of other qt4 applications segfaulted as well.

Info:

$ lsb_release -rd
Description: Ubuntu 18.04.1 LTS
Release: 18.04

$ apt-cache policy qtiplot
qtiplot:
  Installed: (none)
  Candidate: 0.9.8.9-17
  Version table:
     0.9.8.9-17 500
        500 http://in.archive.ubuntu.com/ubuntu bionic/universe amd64 Packages

Source Package:
https://launchpad.net/ubuntu/+source/qtiplot/0.9.8.9-17