Overview of changes in 3.18.1
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* Bugs fixed:
 688566 offset-controller: Prevent loading more items than there actually is
 725508 Can not handle window manager's unfull/full screen operation
 741593 No pagination buttons when previewing search results
 755600 Fix the background of GdTaggedEntry tags
 756131 Disable can-fullscreen when going back, and simplify the state
        changes / signal emissions
 756221 Disabling application menu adds a redundant toolbar