update-apt-xapian-index-dbus crashed with TypeError in _update_apt_xapian_index(): split() takes at most 2 arguments (3 given)

To reproduce on yakkety I launched muon package manager a desktop file that appears in the menu on lxqt which I was not the most familiar and I scrolled some and then closed the program and apport showed up in a crash in apport.

ProblemType: Crash
DistroRelease: Ubuntu 16.10
Package: apt-xapian-index 0.47ubuntu10
ProcVersionSignature: Ubuntu 4.4.0-33.52-generic 4.4.15
Uname: Linux 4.4.0-33-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
ApportVersion: 2.20.3-0ubuntu5
Architecture: amd64
Date: Wed Aug 10 17:37:22 2016
ExecutablePath: /usr/share/apt-xapian-index/update-apt-xapian-index-dbus
InstallationDate: Installed on 2016-06-29 (42 days ago)
InstallationMedia: Lubuntu 16.10 "Yakkety Yak" - Alpha amd64 (20160627)
InterpreterPath: /usr/bin/python3.5
PackageArchitecture: all
ProcCmdline: /usr/bin/python3 /usr/share/apt-xapian-index/update-apt-xapian-index-dbus
ProcEnviron:

PythonArgs: ['/usr/share/apt-xapian-index/update-apt-xapian-index-dbus']
SourcePackage: apt-xapian-index
Title: update-apt-xapian-index-dbus crashed with TypeError in _update_apt_xapian_index(): split() takes at most 2 arguments (3 given)
Traceback:
 Traceback (most recent call last):
   File "/usr/share/apt-xapian-index/update-apt-xapian-index-dbus", line 77, in _update_apt_xapian_index
     (op, progress) = line.split(line, sep=":", maxsplit=1)
 TypeError: split() takes at most 2 arguments (3 given)
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: