kdesudo does not understand extra text in output of sudo

[Dan Dart]

I have libpam-google-authenticator setup for sudo, but kdesudo doesn't understand this, and freezes when the line "Verification code: " is output.

kdesu(21125)/kdesu (kdelibs) KDESu::PtyProcess::exec: [ /build/kde4libs-qm7LPU/kde4libs-4.14.38/kdesu/process.cpp : 293 ] Running "/usr/bin/sudo"
kdesu(21125)/kdesu (kdelibs) KDESu::SuProcess::ConverseSU: [ /build/kde4libs-qm7LPU/kde4libs-4.14.38/kdesu/su.cpp : 259 ] Read line "[sudo] password for dwd: "
kdesu(21125)/kdesu (kdelibs) KDESu::PtyProcess::WaitSlave: [ /build/kde4libs-qm7LPU/kde4libs-4.14.38/kdesu/process.cpp : 379 ] Child pid 21165
kdesu(21125)/kdesu (kdelibs) KDESu::SuProcess::ConverseSU: [ /build/kde4libs-qm7LPU/kde4libs-4.14.38/kdesu/su.cpp : 259 ] Read line ""
kdesu(21125)/kdesu (kdelibs) KDESu::SuProcess::ConverseSU: [ /build/kde4libs-qm7LPU/kde4libs-4.14.38/kdesu/su.cpp : 259 ] Read line "Verification code: "

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: libkf5su-bin 5.44.0-0ubuntu1
ProcVersionSignature: Ubuntu 4.15.0-29.31-generic 4.15.18
Uname: Linux 4.15.0-29-generic x86_64
NonfreeKernelModules: kpatch_livepatch_Ubuntu_4_15_0_29_31_generic_41
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
CurrentDesktop: KDE
Date: Tue Aug 7 12:26:23 2018
InstallationDate: Installed on 2018-07-25 (13 days ago)
InstallationMedia: Kubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
SourcePackage: kdesu
UpgradeStatus: No upgrade log present (probably fresh install)

[Dan Dart (dandart)]

KDE bug: https://bugs.kde.org/show_bug.cgi?id=351637