In screen reader mode, focusing the dialogs search field no longer opens
the suggestions panel or shows the cancel-search button. Search engages
only when the user types, stays engaged after clearing the query, and
disengages only on explicit Escape or the cancel-search button. Tab and
Backspace on an empty query no longer exit search in this mode.
Non-screen-reader behavior is unchanged.
Reza Bakhshi Laktasaraei
b9aad5d250