Bug 399274

Created attachment 115342 [details]
knelpcenter bug

Duplicated menu items in khelpcenter

Summary

Package: khelpcenter version 5.7.3 
KDE Frameworks Version 5.51.0
Qt Version 5.11.1

KDE Plasma Version 5.13.90
Kernel Version 4.15.0-34-generic
OS Type: 64-bit

NAME="KDE neon"
VERSION="Developer Edition"
ID=neon
ID_LIKE="ubuntu debian"
PRETTY_NAME="KDE neon Developer Edition"
VERSION_ID="18.04"
HOME_URL="http://neon.kde.org/"
SUPPORT_URL="http://neon.kde.org/"
BUG_REPORT_URL="http://bugs.kde.org/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=bionic
UBUNTU_CODENAME=bionic

On 2018.09.26, an upgrade was made by command dist-upgrade. 
Incorrect to works the contents index tree in the left half of the application window (TreeWidget) khelpcenter.

STEPS TO REPRODUCE
1. Start khelpcenter (in any way).
2. Choose menu item - "Kinfocenter Modules" -  in the left half of the application window.
3. Choose menu item "Memory" in the right half of the application window.
4. Here it is. Look at the left menu (menu item "Memory" for example. Or menu items Device Viewer, DMA-Channels, IEEE 1394 Devices, Interrupts, IO-Ports, etc.).

OBSERVED RESULT
1. Duplicates of the menu “KinfoCenter” appeared in the sub-items “KinfoCenter” (Device Viewer, DMA-Channels, IEEE 1394 Devices, Interrupts, IO-Ports,  Memory, etc.). These duplicates of the "KinfoCenter" menu are displayed as sub-trees in the standard menu.
For example, in the "Memory" menu (KinfoCenter Modules → click item «Memory» in the contents index tree in the right half of the application window → look at the contents index tree in the left half of the application window).

2. The duplicated menu "KinfoCenter" does not work. Menu items are not expanded when clicked (Original menu "KinfoCenter" works true: Application Manuals → System → Info Center).
Pressing on the duplicated "KinfoCenter" menu items does not result in any result (the corresponding help information is not displayed in the right part of the khelpcenter window).

EXPECTED RESULT
1. Subtrees of the "Memory" item (and also in Device Viewer, DMA-Channels, IEEE 1394 Devices, Interrupts, IO-Ports, etc.) should not appear.
2. The original menu "KinfoCenter" should be located only in the section (Application Manuals) → (System) → (Info Center).
3. It should work correctly:
- all menu items should be displayed,
- subparagraphs should open and disclose subtrees,
- the corresponding help is displayed on the right side of the khelpcenter window.