For example, "AutoCorrect" and "AutoAbstract to Presentation" both shows "Customizes and saves current menu layouts as well as creates new menus." at the description field. That's misleading and we better leave the field empty.
If there is no help text for the selected command, it tries to get the help text of the parent class/widget, that's why this happens.
Patch on gerrit: https://gerrit.libreoffice.org/#/c/51584/
Muhammet Kara committed a patch related to this issue.
It has been pushed to "master":
tdf#116494: Don't ask parent if no help text
It will be available in 6.1.0.
The patch should be included in the daily builds available at
http://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More
information about daily builds can be found at:
Affected users are encouraged to test the fix and report feedback.