Error: UnexpectedField "Last-Modified" on directory

[cassava]

Fetching the songs from my database gives me:

Error: InvalidTypedResponse(TypedResponseError { field: "file", kind: UnexpectedField("Last-Modified") })

I tracked down the point where it occurs in the code and then checked the actual frame.
Looks something like this:

parse_frame:
- directory: The Lumineers
- Last-Modified: 2021-04-27T08:24:23Z
- directory: The Lumineers/Cleopatra
- Last-Modified: 2021-02-22T13:09:32Z
- file: The Lumineers/Cleopatra/01-Sleep on the Floor.flac
- Last-Modified: 2021-02-22T11:08:42Z
- Format: 44100:16:2
- Title: Sleep on the Floor
- Artist: The Lumineers
- AlbumArtist: The Lumineers
- Album: Cleopatra
- Disc: 1
- Date: 2016
- Track: 1
- Genre: Folk Pop
- Time: 213
- duration: 212.800

I have a PR in the works to resolve this.

[elomatreb]

Closed via #8 (thanks!)