Dynamic Configuration overrides initial config

[A5SL4R]

Hey,
im using dynamic configuration for some advanced test cases with different configurations, like described here: https://codecept.io/advanced/#dynamic-configuration

Do I understand correctly that the configuration then only applies to the current test case for which I have overwritten or from then on all other test cases would also have to run with the overwritten config?
It is currently the case that from the point at which I overwrite the config for a test case, all other test cases also run with the config, which they should not do.