perform length check after stripping non-alphanumeric chars
perform length check after stripping non-alphanumeric chars

DemocracyClub/UK-Polling-Stations,DemocracyClub/UK-Polling-Stations,DemocracyClub/UK-Polling-Stations,chris48s/UK-Polling-Stations,chris48s/UK-Polling-Stations,chris48s/UK-Polling-Stations