https://bugs.kde.org/show_bug.cgi?id=388307

            Bug ID: 388307
           Summary: Scaling an image breaks symmetry axes for multibrush
                    tool
           Product: krita
           Version: 3.3.2
          Platform: Archlinux Packages
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: Tools
          Assignee: krita-bugs-n...@kde.org
          Reporter: k...@kdex.de
  Target Milestone: ---

1) Press `Q` to select the multibrush tool in an image.
2) Not sure if this setup is really necessary, but I set the tool up as follows
in the "Tool Options" tab:

[Basic Smoothing]
[ ] Assistant
[x] Snap single
[x] Show Axes
Axes Angle: 0.0°
[Mirror]
[x] Horizontally [ ] Vertically

Make sure to verify that it works as expected by drawing: i.e., if you draw
something on (x, y), the same value should appear on (-x, y) if you imagine the
horizontal center lies at x = 0.

3) Now, scale the image up. In my case, I resized an image from 64×32 px to
1024×512 px, hence keeping its proportions.

4) Try to use the multibrush tool again. If you show the axes (in the tool
settings), you will see that they still apply to the old image of dimensions
64×32 px. Essentially, this breaks the multibrush tool and requires the user to
save, close and re-open the image for the axis to be recalculated.

I would have expected these axes to be recomputed whenever the image size
changes.

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