How do you make Webstorm/IntelliJ use a specific tsconfig file for specific files for code...

I want to deactivate tsconfig's noUncheckedIndexedAccess flag for an angular project's spec-files. The tests are compiling and running, but Webstorm still shows the particular code spots in the spec files as if the flag was turned on.

// tsconfig.json
{
...,
"noUncheckedIndexedAccess": true,
}


// tsconfig.spec.json
{
"extends": "./tsconfig.json",
"compilerOptions": {
"outDir": "./out-tsc/spec",
"types": ["jasmine"],
"noUncheckedIndexedAccess": false
},
"files": ["src/test.ts"],
"include": ["src/**/*.spec.ts", "src/**/*.d.ts"]
}


Webstorm seems to ignore the file's include-array.

How do I do that / Is this a bug?

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