DiscovererWorker: Don't instanciate a parser to flush its tasks list
DiscovererWorker: Don't instanciate a parser to flush its tasks list

Missing bits from 842123180559d11007a74d08ab47e8ec12761528

chouquette/medialibrary,chouquette/medialibrary,chouquette/medialibrary,chouquette/medialibrary