Rotate after undo causes component to walk

[Mark Jeronimus]

When rotating a components, the location of the reference and value relative to the component changes drastically, and when rotating continuously (holding 'r' pressed) the component walks (changes origin).

Steps to reproduce:

* Load the attached schematic
* Rotate the component a few times
* Undo everything
* Rotate many times again

Alternate steps to reproduce:

* Open eeschema standalone
* Place any component (tested with "R", "L" and "L_Core_Ferrite" thus far and all are affected)
* Rotate a few times
* Undo as many times
* Rotate many times again

*Expected behavior:*
Component rotates about it's origin and the texts stay close to the component

*Actual behavior:*
The component origin changes pseudorandomly(!) and the texts are displaced relative to the component

Application: Eeschema
Version: 5.99.0-unknown-a3229c4~100~ubuntu18.04.1, release build
Libraries:
    wxWidgets 3.0.4
    libcurl/7.58.0 OpenSSL/1.1.1 zlib/1.2.11 libidn2/2.0.4 libpsl/0.19.1 (+libidn2/2.0.4) nghttp2/1.30.0 librtmp/2.3
Platform: Linux 5.0.0-31-generic x86_64, 64 bit, Little endian, wxGTK
Build Info:
    Build date: Oct 17 2019 11:49:37
    wxWidgets: 3.0.4 (wchar_t,wx containers,compatible with 2.8) GTK+ 3.22
    Boost: 1.65.1
    OpenCASCADE Community Edition: 6.9.1
    Curl: 7.58.0
    Compiler: GCC 7.4.0 with C++ ABI 1011

Build settings:
    KICAD_SCRIPTING=ON
    KICAD_SCRIPTING_MODULES=ON
    KICAD_SCRIPTING_PYTHON3=ON
    KICAD_SCRIPTING_WXPYTHON=ON
    KICAD_SCRIPTING_WXPYTHON_PHOENIX=ON
    KICAD_SCRIPTING_ACTION_MENU=ON
    BUILD_GITHUB_PLUGIN=ON
    KICAD_USE_OCE=ON
    KICAD_USE_OCC=OFF
    KICAD_SPICE=ON

[Ian McInerney (imcinerney)]

The undo step is critical for replicating this.

(somewhat related previous walking bug: lp1833371)

[KiCad Janitor (kicad-janitor)]

Fixed in revision e533ea4ae6a0d2f14585996a9f7537fd9d16a5dd
https://git.launchpad.net/kicad/patch/?id=e533ea4ae6a0d2f14585996a9f7537fd9d16a5dd