{ "prompt": "mergeConfig() drops nested settings from the base configuration when the override sets only some keys of a nested object. Merge nested objects deeply; arrays from the override replace base arrays, and neither input may be mutated.", "check": [ "node", "--experimental-strip-types", "--no-warnings", "--test", "bench_hidden/check.test.ts" ], "workflow": { "kind": "TypeScript change" } }