purgeOutput with emitCompiled does not purge the output dir

[okaisti]

as title said,

generator nestgraphql {
  provider           = "prisma-nestjs-graphql"
  output             = "../src/@generated"
  noAtomicOperations = true
  reExport           = None
  purgeOutput        = true
  emitCompiled       = true
}

produces inconsistent results, e.g. changing the schema (adding a field to an enum for example) does not regenerate the output when running db generate