Fixed keeping sort by on listing page paginator
Fixed keeping sort by on listing page paginator

rmzamora/SonataDoctrineORMAdminBundle,Bladrak/SonataDoctrineORMAdminBundle,aurelien-vtech/SonataDoctrineORMAdminBundle,rschumacher/SonataDoctrineORMAdminBundle,rschumacher/SonataDoctrineORMAdminBundle,pulzarraider/SonataDoctrineORMAdminBundle,aurelien-vtech/SonataDoctrineORMAdminBundle,aurelien-vtech/SonataDoctrineORMAdminBundle,nlzet/SonataDoctrineORMAdminBundle,nlzet/SonataDoctrineORMAdminBundle,rschumacher/SonataDoctrineORMAdminBundle,nlzet/SonataDoctrineORMAdminBundle,pulzarraider/SonataDoctrineORMAdminBundle,nlzet/SonataDoctrineORMAdminBundle,rmzamora/SonataDoctrineORMAdminBundle,rmzamora/SonataDoctrineORMAdminBundle,pulzarraider/SonataDoctrineORMAdminBundle,aitboudad/SonataDoctrineORMAdminBundle,rschumacher/SonataDoctrineORMAdminBundle,sonata-project/SonataDoctrineORMAdminBundle