~{overbar} return invalid result
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# Steps to reproduce
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1. Add net label
2. Set label name to ~{IO32/INT}
3. **Result**

**Expected**:
**IO32/INT** with overbar above it, but the result is **IO32{slashINT}**
# KiCad Version
```
Application: KiCad Schematic Editor x64 on x64
Version: 7.0.2, release build
Libraries:
wxWidgets 3.2.2
FreeType 2.12.1
HarfBuzz 6.0.0
FontConfig 2.14.1
Platform: Windows 11 (build 22621), 64-bit edition, 64 bit, Little endian, wxMSW
wxWidgets: 3.2.2 (wchar_t,wx containers)
Boost: 1.81.0
OCC: 7.6.3
Curl: 7.88.1-DEV
ngspice: 40
Compiler: Visual C++ 1934 without C++ ABI
Build settings:
KICAD_SPICE=ON
```
issue