Unable to select folder to calculate Disk Usage from Krusader

[Norbert]

Steps to reproduce:
0. Install Ubuntu 16.04 LTS, install krusader
1. Open Krusader
2. select 'Tools | Disk Usage'
3. in opened window click 'Open file dialog'
4. navigate to folder and click on it
5. click OK

Expected results:
folder is selected, disk usage started to be counted

Actual results:
OK does not select folder, Open file dialog does not close.

Note:
Disk Usage calculation works normally if I enter path manually in the "Viewing the usage of directory:" text-field.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: krusader 1:2.4.0~beta3-2ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-97.120-generic 4.4.87
Uname: Linux 4.4.0-97-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
CurrentDesktop: MATE
Date: Fri Oct 20 12:47:36 2017
InstallationDate: Installed on 2014-02-07 (1350 days ago)
InstallationMedia: Ubuntu 12.04.4 LTS "Precise Pangolin" - Release amd64 (20140204)
SourcePackage: krusader
UpgradeStatus: Upgraded to xenial on 2017-04-15 (187 days ago)

[Launchpad Janitor (janitor)]

[Expired for krusader (Ubuntu) because there has been no activity for 60 days.]