[color-picker] shorthand RGB hex should be accepted with alpha-channel

[jcfranco]

Check existing issues

• I have checked for existing issues to avoid duplicates

Actual Behavior

Shorthand RGB hex is no longer expanded when the input is blurred.

Expected Behavior

Shorthand hex should be accepted regardless of alpha channel being present or not.

Reproduction Sample

https://codepen.io/jcfranco/pen/pvzWmaq?editors=100

Reproduction Steps

1. click on hex input
2. select all text
3. type any shorthand rgb hex (e.g., abc)
4. blur input
5. notice original value is restored

Reproduction Version

2.13.2

Relevant Info

Looks like this was introduced in #9701.

Regression?

2.10.1

Priority impact

impact - p3 - not time sensitive

Impact

This might affect users that assume blurring inputs will expand shorthand hex values.

Calcite package

• @esri/calcite-components
• @esri/calcite-components-react
• @esri/calcite-design-tokens
• @esri/calcite-ui-icons
• @esri/eslint-plugin-calcite-components

Esri team

Calcite (dev)