schematic hierarchy navigator fails to show some page numbers
# Description
Schematics hierarchy navigator fails to show some sheet numbers:
# Steps to reproduce
1. open the attached project ([replicate_layout_test_project.zip](/uploads/5bfe9029307a19f49754aa28f9e3914d/replicate_layout_test_project.zip))
2. open schematics and look at the hierarch navigator
# KiCad Version
```
Application: KiCad Schematic Editor x86_64 on x86_64
Version: 7.99.0-unknown-f07d797ab3~176~ubuntu22.04.1, release build
Libraries:
wxWidgets 3.2.1
FreeType 2.11.1
HarfBuzz 2.7.4
FontConfig 2.13.1
libcurl/7.81.0 OpenSSL/3.0.2 zlib/1.2.11 brotli/1.0.9 zstd/1.4.8 libidn2/2.3.2 libpsl/0.21.0 (+libidn2/2.3.2) libssh/0.9.6/openssl/zlib nghttp2/1.43.0 librtmp/2.3 OpenLDAP/2.5.16
Platform: Ubuntu 22.04.3 LTS, 64 bit, Little endian, wxGTK, X11, KDE, x11
Build Info:
Date: Jan 5 2024 14:35:22
wxWidgets: 3.2.1 (wchar_t,wx containers) GTK+ 3.24
Boost: 1.74.0
OCC: 7.5.2
Curl: 7.81.0
ngspice: 40
Compiler: GCC 11.4.0 with C++ ABI 1016
Build settings:
```
issue