textbox with long strings: false line break at sloping orientation
# Description
# Steps to reproduce
1. open attached project, open board: [rotated_flipped_textbox.zip](/uploads/b6a32bb26519fb5d440fe6eca5a60f02/rotated_flipped_textbox.zip)
2. select textbox on top silk layer
3. execute command "Move exactly", set parameter rotate==45°
4. observe the result: textbox border is correctly rotated, but long textstring from 4.line gets broken into multiple lines

# KiCad Version
```
```
```
Application: KiCad PCB Editor x64 on x64
Version: 9.99.0-847-g9111a65302, release build
Libraries:
wxWidgets 3.2.6
FreeType 2.13.3
HarfBuzz 10.2.0
FontConfig 2.15.0
Platform: Windows 10 (build 19045), 64-bit edition, 64 bit, Little endian, wxMSW
OpenGL: Intel, Intel(R) HD Graphics 4000, 4.0.0 - Build 10.18.10.5161
wxWidgets: 3.2.6 (wchar_t,wx containers)
Boost: 1.86.0
OCC: 7.8.1
Curl: 8.11.1-DEV
ngspice: 44
Compiler: Visual C++ 1942 without C++ ABI
KICAD_IPC_API=ON
Locale:
Lang: en_GB
Enc: UTF-8
Num: 1,234.5
Encoded кΩ丈: D0BACEA9E4B888 (sys), D0BACEA9E4B888 (utf8)
```
issue