🐛 Bug Fix

This PR resolves issue #3771, where the Vue <Combobox> would auto-select the active option (typically the first one) when the input was blurred — even if the user didn’t select anything or type.

✅ Changes

• Updated handleBlur logic to prevent auto-selection unless:
  • The user manually triggered the combobox (not just by focusing), and
  • There is non-empty user input.
• Prevents unintended value commits when blurring after opening the dropdown via tab/focus.
• Ensures nullable comboboxes properly clear the value if input is cleared.

🧪 Tests Added

• should not auto-select when input was focused and blurred without typing
• should not auto-select the active option when the combobox input is blurred

These regression tests ensure no value is selected unintentionally during blur.

🧠 Context

This behavior was correct in v1.7.13, but regressed in later versions. This change restores expected UX where blur does not imply selection unless explicitly intended.

Let me know if anything needs clarification. Happy to iterate on feedback!