Fix frost-autocomplete filter not being populated via queryForCurrentValue, and have async filter show isloading

[EWhite613]

Overview

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CHANGELOG

• Fix frost-autocomplete queryForCurrentValue not populating the filter
• Feature frost-autocomplete shows isLoading icon when doing an async search

[sophypal]

Any reason to leave the comments in?

[EWhite613]

Whoops left those in by accident