Enum in TypedPath - how is it being compared?

[simonsan]

Summary

I'm using the following enum and TypedPath:

use axum_extra::routing::TypedPath;
use serde_derive::{Deserialize, Serialize};
use strum::{AsRefStr, Display, EnumString, EnumVariantNames, IntoStaticStr};

#[derive(Debug, Clone, Copy, PartialEq, Eq, Default, Display, Serialize, Deserialize, IntoStaticStr, AsRefStr, EnumVariantNames, EnumString)]
#[strum(serialize_all = "lowercase")]
#[strum(ascii_case_insensitive)]
pub enum TpeKind {
    Config,
    #[default]
    Data,
    Index,
    Keys,
    Locks,
    Snapshots,
}

#[derive(TypedPath, Deserialize)]
#[typed_path("/:repo/:tpe/:name")]
pub struct RepositoryTpeNamePath {
    pub repo: String,
    pub tpe: TpeKind,
    pub name: String,
}

As a response I'm getting:

response body = "Invalid URL: unknown variant `keys`, expected one of `Config`, `Data`, `Index`, `Keys`, `Locks`, `Snapshots`"

Which I don't understand after using strum and making sure the variants are lowercase. How can I make sure axum is using the serialized variants that strum provides? Or how can assure, that the lowercase variants are used for comparison in the path?

EDIT: The fix is to annotate TpeKind with #[serde(rename_all = "lowercase")], but I thought using strum would have the same effect?

axum version

0.7.4