A former employee of a fire department of a city of the first class who (1) was a member of the firefighters' pension system created by chapters
41.16 or
41.18 RCW, and (2) is now employed within the police department of such city, will be regarded as having received membership service credit for such service to the fire department in the city's police and relief pension system at the time he or she recovers such service credit by paying withdrawn contributions to the Washington law enforcement officers' and firefighters' retirement system pursuant to *RCW
41.26.030(28).