fix: deserialization bug for Base64Url #2305

Job	Run time
Collect Context	3s
Run CodeQL Analysis	5m 8s
Check Formatting	29s
Run Security Rating	0s
Run BlackDuck Scan	0s
Test ${{ matrix.task.archetype }} Archetype	0s
Build	0s
Run ${{ matrix.task.name }} Analysis	0s
Test	0s
	5m 40s

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