ModernTaxonomyPicker single selection doesn't "unfocus"

Category

[ ] Enhancement

[X ] Bug

[ ] Question

Version

Please specify what version of the library you are using: [3.23.0]

Expected / Desired Behavior / Question

When allowMultipleSelections = false, after choosing an option, the input field continues to have the thick focus border around the control. Since you cannot enter the box, you can't tab out or otherwise cause a blur event to cause the border to be removed.

I verified if you have allowMultipleSelections = true, after you choose 1 option, tabbing out or clicking out causes it to blur and remove the focus border.

The desired behavior is to have it trigger the blur even so the thick focus border is removed. As a bonus, it would be nice to expose the blur event just like we have the onChange event. This would help with integrating into other validation libraries.

Observed Behavior

See above

Steps to Reproduce

See above

Start at the ModernTaxonomyPicker implementation and reproduce the issue with allowMultipleSelections set to false. Verify that selecting an option removes the focus border, and consider the requested blur event separately; the issue provides no file or test path, so locate the relevant control and its existing selection behavior first.