Chrome Picker - disabling alpha and then selecting a colour on the hue bar returns transparent

How to reproduce:
- Insert a ChromePicker component, with the alpha picker disabled.
- Without adjusting the colour range, select a colour on the hue bar.
- onChangeComplete returns "transparent" as the colour selected.

Start by reproducing the ChromePicker case with the alpha picker disabled, then trace the onChangeComplete result when a colour is selected on the hue bar. Done means that selecting a hue without adjusting the colour range returns the selected colour instead of "transparent", with a regression test covering the reproduction.

Written by the indexing model from the issue text.