Select Extended Attribute resets back to the first Child Value Regardless of what is selected when Edited

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I've open an issue about it on Rock Github thinking that the Select Extended Attribute is core. Anyhow, the details of the issue is well documented: SparkDevNetwork/Rock#6387

Expected Behavior

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Actual Behavior

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Steps to Reproduce

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Rock Version

16.11

Plugin Version

1.0.10.16

Client Culture Setting

en-US