https://bugs.kde.org/show_bug.cgi?id=516810

cwo <[email protected]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Pressing the space bar on   |Activating "Show Usage
                   |"Show Usage Help" button    |Help"/ seaching for "?"
                   |sets textbox contents to    |should not show
                   |"?" , then clears it        |non-help-runner results
                 CC|                            |[email protected]

--- Comment #2 from cwo <[email protected]> ---
The behavior of the button is correct, the behavior of krunner is not.

? in the search field activates the help runner. It should show a list of
topics it can give help on, and selecting them should give more info on how to
use this runner (possibly with sub-options, which are in turn ?+key word
queries like "?recent").

But other runners can also respond to ?, and thus crowd out the help runner.
Often, you might get just a single help runner result, and the rest is Browser
tabs and the like.

I suspect this worked in the past because most runners had a character length
restriction (to prevent them from giving low-quality results), but we kept
getting complaints that making the search term longer should not lead to
getting more results, so most limits were removed. Now ? can give a lot of
results (every web site in your history with ? in the title if you have the
browser history runner enabled, for example), which makes it pretty terrible as
a help interface.

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