Query validation shows an incorrect location in some cases

[tasn]

E.g. when you "list messages" with event_types=1, (, is not allowed in event type names), you get this:

Error: Varidation error Some(HttpValidationError { detail: [ValidationError { loc: ["query", "__all__"], msg: "String must match the following pattern: [a-zA-Z0-9\\-_.].", _type: "value_error" }] })

Location should be query, event_types or even better: query, event_types, 0 as it's the first item.