PIMCORE-2018 - Children Grid is not showing indirect children && Pimcore Crash if modify folder name

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@3336 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
build auto version (2819) ...

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@3337 1f8fe7d8-47f0-464c-8d0a-336f4953ab05