[MultiComboBox]: error state persists when there is no invalid value

[Dar-Rod]

Bug Description

After entering an invalid value in the MultiComboBox field, the input correctly enters an error state. However, the error state persists after selecting(adding selected items clears the search input value) and deselecting selected items, even after deselecting all selected options, leaving the input empty but still marked as invalid.

Affected Component

No response

Expected Behaviour

If a user selects another item from the list after typing an invalid value in the input:

• The search input value should remain visible if the error state is still active;

or

• The error state should be cleared if the search input value is reset.

Isolated Example

https://ui5.github.io/webcomponents-react/v2/?path=/docs/inputs-multicombobox--docs

Steps to Reproduce

1. Select any items from the list.
2. Type an invalid value in the search field.
3. Select one more item from the list.
4. Deselect all previously selected items.
   ...

Log Output, Stack Trace or Screenshots

2026-04-10_12-39-17.mp4

Priority

High

UI5 Web Components Version

2.20.1

Browser

Chrome

Operating System

No response

Additional Context

No response

Organization

No response

Declaration

• I’m not disclosing any internal or sensitive information.