meson not updating configuration in build directory

[oword]

Essentially, I've been having an issue with meson not setting an option to the configuration in the build directory, I compiled the project from the build directory but when I ran meson configure in the build directory it didn't change the option. I solved the issue by deleting the build directory and running meson setup again. Is this potentially a bug with meson or did I do something incorrectly?
It's also worth mentioning that when I ran meson configure in the source directory it did show me the correct configuration.
project('test-project', 'cpp', default_options: ['cpp_std=c++20', 'build.cpp_std=c++20'])