Ignore changes from Double to Long (and vice-versa) for values that are semantically the same.

[samtstern]

I just ran into a strange bug in some geofire-java testing that has been fixed in the Android SDK but is not fixed here.

Internal details:
@schmidt-sebastian fixed it in CL 141802441, the internal bug number is 32519140.

[google-oss-bot]

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