NavigationService page caching does not work with global resource dictionaries

[Pantheas]

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Desktop (please complete the following information):

• OS: [e.g. iOS]
• Visual Studio version [e.g. 15.8.6 ]
• .NET version [e.g. .NET Standard 2.0]

Smartphone (please complete the following information):

• Visual Studio version [e.g. 15.8.6 ]
• .NET version [e.g. .NET Standard 2.0]
• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Version [e.g. 22]

Additional context
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[LegendaryB]

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