Prerequisites

• I have carried out troubleshooting steps and I believe I have found a bug.
• I have searched for similar bugs in both open and closed issues and cannot find a duplicate.

Describe the bug

Suddenly, entering three characters minimum is mandatory when selecting a product attribute - which is nonsense since a lot of attributes can be shorter (e.g. clothing sizes S,M,L,XL,...) and renders product attribute management for users difficult.

Expected behavior

Not having a minimum character limit for select fields in product management screen

Actual behavior

Attributes with less than three characters cannot be found / autocomplete does not produce results

Steps to reproduce

1. Products -> edit product
2. Attributes -> try to add attribute with a name like "S", "M", "L" or "XL"
3. Fail :)

WordPress Environment

Latest WP and woocommerce

Isolating the problem

• I have deactivated other plugins and confirmed this bug occurs when only WooCommerce plugin is active.
• This bug happens with a default WordPress theme active, or Storefront.
• I can reproduce this bug consistently using the steps above.