the refresh is  currently needed for several reasons as the Segmentation editor is not coded properly and does not just work without the page reload.
 Ideally we'll rewrite the Segment Editor in AngularJS later so this reload will not be needed.

fixes https://github.com/piwik/piwik/issues/10626
Reverting https://github.com/piwik/piwik/commit/5daf6c2388693746f2a47a9e6c31276d0b423a4f
part of https://github.com/piwik/piwik/commit/0c9c30b731ccbacf47e154b9f7a590af49e3d799