Arcs wrongly turned in PCBnew when using "flip board view"

[KiCad bug report]

When using the "flip board view" function in the "view"-menu of PCBnew, all items are flipped around the Y-axis, as where the arcs are first flipped around the Y-axis and next also around the X-axis.

I have added a 'before' and an 'after' screenshot, as a picture often explains more than a thousand words...
In these screenshots, the issue is only visible with 90° arcs, as standing 180° arcs don't change when flipping around the X-axis.

Application: kicad
Version: (5.1.0-0), release build
Libraries:
    wxWidgets 3.0.4
    libcurl/7.54.0 LibreSSL/2.0.20 zlib/1.2.11 nghttp2/1.24.0
Platform: Mac OS X (Darwin 17.7.0 x86_64), 64 bit, Little endian, wxMac
Build Info:
    wxWidgets: 3.0.4 (UTF-8,STL containers,compatible with 2.8)
    Boost: 1.68.0
    OpenCASCADE Community Edition: 6.9.1
    Curl: 7.51.0
    Compiler: Clang 8.0.0 with C++ ABI 1002
Build settings:
    USE_WX_GRAPHICS_CONTEXT=ON
    USE_WX_OVERLAY=ON
    KICAD_SCRIPTING=ON
    KICAD_SCRIPTING_MODULES=ON
    KICAD_SCRIPTING_PYTHON3=OFF
    KICAD_SCRIPTING_WXPYTHON=ON
    KICAD_SCRIPTING_WXPYTHON_PHOENIX=OFF
    KICAD_SCRIPTING_ACTION_MENU=ON
    BUILD_GITHUB_PLUGIN=ON
    KICAD_USE_OCE=ON
    KICAD_USE_OCC=OFF
    KICAD_SPICE=ON

[Seth Hillbrand (sethh)]

Related to lp:1822772

[Wayne Stambaugh (stambaughw)]

@Seth, I'm getting ready to tag 5.1.2. Do I need to hold off until this fix is pushed?

[Wayne Stambaugh (stambaughw)]

On 4/14/19 2:38 PM, Wayne Stambaugh wrote:
> @Seth, I'm getting ready to tag 5.1.2. Do I need to hold off until this
                                ^^ 5.1.1 ^^
> fix is pushed?
>

[Seth Hillbrand (sethh)]

No. I won't have time to look at this until after KiCon. We need a 5.1.2 tag to target things for

[KiCad Janitor (kicad-janitor)]

Fixed in revision 2e43c6c64e0bdf7a7c5897db2b7b53d0da31080e
https://git.launchpad.net/kicad/patch/?id=2e43c6c64e0bdf7a7c5897db2b7b53d0da31080e