Kicad Flatpak Crash When Adding Track Width to Predefined Sizes in PCB Editor
# Description
Currently Kicad crashes in PCB Editor when you add a track width to the predefined sizes.
# Steps to reproduce
1. In PCB editor, click on "Track: user netclass width"
2. Select "Edit Pre-Defined Sizes..."
3. Click the "+" icon that corresponds to Tracks-\>Width.
4. Enter 0.4 and press return.
5. Click OK.
6. Kicad crashes.
{width=900 height=581}
# KiCad Version
```
Application: KiCad PCB Editor x86_64 on x86_64
Version: 10.0.1, release build
Libraries:
wxWidgets 3.2.10 GLX
FreeType 2.14.1
HarfBuzz 11.4.5
FontConfig 2.17.1
libcurl/8.15.0 OpenSSL/3.5.5 zlib/1.3.1 zstd/1.5.7 libidn2/2.3.8 libpsl/0.21.5 nghttp2/1.66.0
Platform: GNOME 49 (Flatpak runtime), 64 bit, Little endian, wxGTK, X11, wayland, KDE, KDE
OpenGL: Mesa, NV134, 4.3 (Compatibility Profile) Mesa 26.0.4 (git-d9e5e36b19), GLX 1.4
Build Info:
Date: Nov 11 2011 11:11:11
wxWidgets: 3.2.10 (wchar_t,wx containers) GTK+ 3.24
Boost: 1.90.0
OCC: 7.9.3
Curl: 8.15.0
ngspice: 46
Compiler: GCC 15.2.0 with C++ ABI 1020
KICAD_IPC_API=ON
KICAD_USE_PCH=OFF
Locale:
Lang: en_GB
Enc: UTF-8
Num: 1,234.5
Encoded кΩ丈: D0BACEA9E4B888 (sys), D0BACEA9E4B888 (utf8)
```
issue