Version 3.20.1
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- desktop-background: use desktop window only when needed. (Alberts Muktupāvels)
- display-config: handle invalid previous configurations. (Rui Matos)
- notifications: fix two regressions. (Alberts Muktupāvels)
- Fix multiple memory leaks. (Alberts Muktupāvels)
- Updated translations:
  Dušan Kazik (sk), Mario Blättermann (de).