Sort modifier causes no output

[wm-simon]

Bug Description

After upgrading from 3.0.0 there is no output for arrays, when you add the sort param. Before this was working. When you remove the param, the entries are shown.

How to Reproduce

history:
  -
    jahr: '1920'
    title: 'title'
    text: 'text'
    is_hidden: false
  -
    jahr: '1925'
    title: 'title'
    text: 'text'
    is_hidden: false

{{ history sort="jahr:desc" }} // no putput
{{ history }} // putput

Extra Detail

Environment

Statamic version: 3.0.9

PHP version: 7.4

Install method (choose one):

• Fresh install from statamic/statamic