compilation eventually fails on devserver with doubled workflowEntrypoint

[jennmueng]

After a while, and a couple of Rebuilt workflow bundle the nextjs dev server fails with

⨯ ./apps/web/src/app/.well-known/workflow/v1/flow/route.js:306:54
Ecmascript file had an error
  304 | `;
  305 |
> 306 | export const POST = workflowEntrypoint(workflowCode);POST = workflowEntrypoint(workflowCode);
      |                                                      ^^^^

cannot reassign to a variable declared with `const`