Kexi Reports: move ownership of KoReportData to real users: KoReportPreRenderer and KoReportDesigner
Summary: This would avoid possible ownership conflicts and memory leaks
Test Plan:
Open reports in design and preview mode.
Breakpoint @ ctors/dtors. Memory management seems to be fine now.
Reviewers: piggz
Differential Revision: https://phabricator.kde.org/D780
FIXED-IN:2.9.11