Bug 415099

SUMMARY

The default behaviour of kate has changed so that it always opens a new session. 

STEPS TO REPRODUCE
1. Create 2 text files x.txt and y.txt
2. open kate using `kate -b x.txt`
3. open kate using `kate -b y.txt`

OBSERVED RESULT
Two different sessions are open. Both report the message "Failed to register /MainApplication on DBus"

EXPECTED RESULT

That both files would be open in the same session.

SOFTWARE/OS VERSIONS
KDE Frameworks 5.64.0
Qt 5.12.5 (built against 5.12.5)
The xcb windowing system

Name         : kate
Version      : 19.04.2
Release      : 1.fc30
Architecture : x86_64
Size         : 14 M
Source       : kate-19.04.2-1.fc30.src.rpm
Repository   : @System
From repo    : updates
Summary      : Advanced Text Editor
URL          : https://cgit.kde.org/kate.git
License      : LGPLv2 and LGPLv2+ and GPLv2+
Description  : Advanced Text Editor.

ADDITIONAL INFORMATION

This happens regardless of the method of opening the files using `xdg-open` or in a file manager.