D8945: Return a valid bookmark object for any entry in KFilePlacesModel

[Renato Oliveira Filho]

renatoo added a dependent revision: D8946: Avoid unnecessary 'dataChanged' 
signal.

REPOSITORY
  R241 KIO

REVISION DETAIL
  https://phabricator.kde.org/D8945

To: renatoo, dfaure
Cc: #frameworks