watch-mode for typescript fails no change of type which is exported

[melounek]

here is repro:
https://github.com/melounek/repro-codegen

after last release the watch-mode works better, but when a graphql-type is exported and used in different files, it will fail on change with: Unable to load from file "**/schema.ts": Schema must contain uniquely named types but contains multiple types named "MyType". because of some cache probably.