An officer who has been required to show cause for retention in a space force active status under subsection (b) of
section 20501 of this title and who is thereafter retained in an active status may not again be required to show cause for retention in a space force active status under such subsection solely because of conduct which was the subject of the previous proceedings, unless the findings or recommendations of the retention board that considered the officer’s previous case are determined to have been obtained by fraud or collusion.