Which middleware has the bug?

@hono/zod-openapi

What version of the middleware?

1.2.0

What version of Hono are you using?

4.11.4

What runtime/platform is your app running on? (with version if possible)

bun

What steps can reproduce the bug?

Every time I go to the endpoint that generates the OpenAPI JSON file, it stacks items in the memory that are never garbage collected.

Clone the repo:

https://github.com/thibaultleouay/hono-openapi-memory-leak

Run the k6 script once, generate the heap dump by going to localhost:3000. Run the k6 script another time, generate the heap dump by going to localhost:3000.
I can see a lot of new functions like this that are never free from memory.

What is the expected behavior?

No response

What do you see instead?

No response

Additional information

No response