Fixes for apple-clang crashes and performance issues #1865

Job	Run time
Generate build matrix for CMake Test Package CI	3s
Apple Clang 15 C++20 fmtlib gsl-lite Debug	1m 3s
Apple Clang 15 C++20 fmtlib none Release	54s
Clang-16 (x86-64) C++20 fmtlib gsl-lite Debug	1m 12s
Clang-16 (x86-64) C++20 fmtlib none Release	1m 17s
Clang-17 (x86-64) C++20 fmtlib none Debug	1m 14s
Clang-17 (x86-64) C++20 std::format gsl-lite Debug	1m 15s
Clang-18 (arm64) C++20 std::format gsl-lite Debug	1m 41s
Clang-18 (arm64) C++23 fmtlib none Release	1m 2s
Clang-18 (x86-64) C++20 std::format gsl-lite Debug	1m 17s
Clang-18 (x86-64) C++23 std::format none Debug	1m 25s
GCC-12 C++20 fmtlib gsl-lite Debug	41s
GCC-12 C++20 fmtlib ms-gsl Release	41s
GCC-12 C++23 fmtlib ms-gsl Debug	46s
GCC-13 C++20 std::format gsl-lite Debug	43s
GCC-13 C++20 std::format none Release	38s
GCC-14 C++20 fmtlib none Release	36s
GCC-14 C++20 std::format gsl-lite Debug	40s
MSVC 14.4 C++20 fmtlib gsl-lite Debug	2m 44s
MSVC 14.4 C++20 std::format gsl-lite Debug	1m 59s
	21m 51s

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