Select - When Inline filter field is open, allow us to also specify a valid pattern that can be searched

Is this a new component or an extension of an existing one?
Select

Describe the feature
When an inline filter is open user can type any characters. even though we might know the selections are only using digits, etc.
If this happens, the component just says:
noResultsFoundText: 'No results found',
Ideally it would say the entered text contains letters when it should just contain numbers, etc

Are there visuals for this feature? If applicable, please include examples for each state and for varying widths
maybe this?

Any other information?

L’issue non indica file, punti di ingresso o test. Inizia individuando l’implementazione di Select inline-filter e i test di filtraggio esistenti, quindi chiarisci come viene fornito un pattern valido e quale messaggio e comportamento sono previsti per un input non valido; il lavoro è completato quando il comportamento concordato è implementato e coperto da test.