[okular] [Bug 416229] New: Zooming out with CTRL+mousewheel does not work correctly anymore

[John van Spaandonk]

https://bugs.kde.org/show_bug.cgi?id=416229

            Bug ID: 416229
           Summary: Zooming out with CTRL+mousewheel does not work
                    correctly anymore
           Product: okular
           Version: 1.9.1
          Platform: Neon Packages
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: okular-devel at kde.org
          Reporter: john at van-spaandonk.nl
  Target Milestone: ---

SUMMARY
Zooming with CTRL+mousewheel does not work correctly anymore since a while ago.
This behavior changed somewhere in the last half year.

STEPS TO REPRODUCE
1. Open a document in Okular
2. Try to zoom out by holding the CTRL key and rolling the mouse wheel towards
you

OBSERVED RESULT
Loosely speaking, Okular can zoom in but cannot zoom out, after zooming in I
observe the values in the "zoom input box" under the menu bar jump to "fit
width"  and after that I cannot zoom out further than that.

More details (help you find the bug):
After I select 17% zoom value, I can zoom in and out, but if I zoom in past the
"fit page" value, then that value becomes the maximum: I cannot zoom out any
further.
When I then zoom in still further I meet the "fit width" value and then that
value becomes the maximum: I cannot zoom out any further.

So you can zoom in, but cannot zoom out past the fixed values in the "zoom box"
 that you encounter along the way.

So somehow when these values are selected, the zooming with the keyboard/mouse
is affected.

EXPECTED RESULT
I should be able to zoom all the way out until the maximum value is reached.

SOFTWARE/OS VERSIONS

Linux/KDE Plasma: neon
(available in About System)
KDE Plasma Version: 5.17.5
KDE Frameworks Version: 5.66.0
Qt Version: 5.13.2

ADDITIONAL INFORMATION
1. Zooming in and out in Firefox with CTRL + mouse wheel works as expected
2. I can zoom by selecting (using the mouse) an explicit zoom value in the
"zoom input box". So it is just using the described keys that does not work
with Okular, reducing its usability (accessibility).

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