Middleware execution order inverted when using a deeper directory structure

[jorbuedo]

🐛 Bug report

Describe the bug

Using latest alpha version: 0.0.0-ae4fe86

With this file structure everything works fine, A executes before B:

├── functions
│   ├── _middleware.ts        # Middleware A
│   ├── ...
│   └── todos
│       ├── _middleware.ts    # Middleware B
│       ├── ...
└── ...

With this one, B executes before A:

├── functions
│   └──  api
│      ├── _middleware.ts       # Middleware A
│      ├── ...
│      └── todos
│         ├── _middleware.ts    # Middleware B
│         ├── ...
└── ...

Reproduce the bug

A list of steps to reproduce the bug.

1. Create the above file structure
2. Run wrangler pages dev
3. Add console.log statements on each and inside a deeper endpoint

Expected behavior

Middleware should always be executed top to bottom.

Environment and versions

Fill out the following information about your environment.

• operating system: ubuntu
• output of wrangler -v: 0.0.0-ae4fe86
• output of node -v: v16.13.1
• content of wrangler.toml: none