[DF-4582] Fixed following issues:
1. Assert message while copying screens with aggregator controls inside.
2. Type convertions errors while copying screens that has aggregator controls as childs.
3. Appearence of dublicated controls after screens/aggregators copy.
[DF-4582] Small fix.
[DF-4582] Hotfix.
Merge remote-tracking branch 'origin/development' into DF-4582_Invalid_copying_of_controls_with_aggregators
Merge remote-tracking branch 'origin/DF-4582_Invalid_copying_of_controls_with_aggregators' into development