Slug-relative link

Hi there!
I have an issue with links to files that i upload to my site. Will try to explain:
My site have folder structure like

├── 01.folder1
     ├── 01.folder2

I upload zip-file and make link: [file]( Link href looks good /folder1/folder2/ but leads to the 404 page because folder names has numbers.
How can i force Grav to redirect requests correctly from /folder1/folder2/ to /01.folder1/01.folder2/

Case in nginx configuration. My fault.