Fix NPE when deserializing `OrganizationalEntity` without name

[nscuro]

Fixes #507

[codacy-production[bot]]

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Coverage variation	Diff coverage
:white_check_mark: +0.00%	:white_check_mark: 100.00%

Coverage variation details

| | Coverable lines | Covered lines | Coverage | | ------------- | ------------- | ------------- | ------------- | | Common ancestor commit (225e7bfb3e386ace86949a34a87f887597ef88bd) | 6071 | 4455 | 73.38% | | | Head commit (f78b1b5a1fb129492126b282bc98c71826791c8a) | 6072 (+1) | 4456 (+1) | 73.39% (**+0.00%**) | **Coverage variation** is the difference between the coverage for the head and common ancestor commits of the pull request branch: ` - `

Diff coverage details

| | Coverable lines | Covered lines | Diff coverage | | ------------- | ------------- | ------------- | ------------- | | Pull request (#508) | 2 | 2 | **100.00%** | **Diff coverage** is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: `/ * 100%`

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