Passing --customConditions null it not respected

[Nasseratic]

Steps to reproduce

I don't have a repo, but I can create it if mandatory

Behavior with typescript@5.8

running tsc --customConditions null overrides the customConditions and sets it to null

Behavior with tsgo

running tsgo --customConditions null does not override customConditions and uses the customConditions from tsconfig.json

[jakebailey]

I'm not sure if the CLI parser supports nulling out flags yet. Seemingly not.