5.5.0 inheriting outDir: ${configDir} does not automatically exclude it from compilation about typescript

[Knagis]

Updated/simplified reproduction repo, now it reproduces the stated error as is and uncommenting outDir in the derived tsconfig.json prevents it.

[Knagis]

tsc --showConfig with inherited outDir:

{
    "compilerOptions": {
        "outDir": "./lib",
        "composite": true,
        "declaration": true,
        "incremental": true
    },
    "files": [
        "./lib/src/index.d.ts",
        "./lib/src/index.spec.d.ts",
        "./src/index.spec.ts",
        "./src/index.ts"
    ],
    "include": [
        "**/*.ts"
    ]
}

the same with outDir defined in the derived config:

{
    "compilerOptions": {
        "outDir": "./lib",
        "composite": true,
        "declaration": true,
        "incremental": true
    },
    "files": [
        "./src/index.spec.ts",
        "./src/index.ts"
    ],
    "include": [
        "**/*.ts"
    ],
    "exclude": [
        "lib"
    ]
}

[Knagis]

ok, so the issue isn't really configDir - but that the outDir from base config isn't ever applied as exclude rule. if i specify outDir: "packages/foo/lib" in the root, the same issue appears. Just that before ${configDir} it never made sense to not have outDir specified in the derived config file.

for my added confusion, for some reason, with 5.5.0 it doesn't seem enough to specify outDir in the derived config anymore in my monorepo, i have to instead explicitly, manually add the folder to exclude list, which wasn't needed in 5.4.5. but maybe this is some cache playing a role, even though i build with -f