Fix issues importing services via Import/Export
Prevents errors when initialising services that do not have any properties set yet - case that could happen when importing projects.
- CHANGELOG entry added
- Tests
- Added for this feature/bug
- All builds are passing
- Conform by the merge request performance guides
- Conform by the style guides
- Branch has no merge conflicts with
master(if you do - rebase it please) - Squashed related commits together