Object - Image With Hotspots: Preview of hot-spots is not correct - https://www.pimcore.org/issues/browse/PIMCORE-2417

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@5231 1f8fe7d8-47f0-464c-8d0a-336f4953ab05