Resets the parent-document pointerdown record and the focus-return state (open overlays' focus
records and the last focused tab). Exported for use in tests only, so one test's recorded click
cannot correlate with the next test's input signal and no test inherits another's focus state.
Resets the parent-document pointerdown record and the focus-return state (open overlays' focus records and the last focused tab). Exported for use in tests only, so one test's recorded click cannot correlate with the next test's input signal and no test inherits another's focus state.