Bug report

Bug description:

on Windows 10 guess_file_type() checking .webp file return tuple('', None) not tuple('image/webp', None)

The problem is db.read_windows_registry() overwrite default types_map .webp = 'image/webp' into .webp = ''

CPython versions tested on:

3.11, 3.12, 3.13

Operating systems tested on:

Windows

Linked PRs

• gh-128703: Fix mimetypes.guess_type for empty Content-Type in registry #128854
• [3.13] gh-128703: Fix mimetypes.guess_type for empty Content-Type in registry (GH-128854) #130121
• [3.12] gh-128703: Fix mimetypes.guess_type for empty Content-Type in registry (GH-128854) #130122