Major changes in 1.50.4
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* dav: Prevent usage of NULL for nonexistent source file (Ondrej Holy)
* client: Fix copy/move operation from/to Flatpak sandbox (Ondrej Holy)
* http: Report original sizes regardless of compression usage (Lucas Chollet)
* Fix string comparison on various places (Sergio Costas Rodriguez)
* Translation updates (GNOME Translation Project contributors)