Join group bug fixed
Join group bug fixed

ImperialCollegeLondon/citizengrid,ImperialCollegeLondon/citizengrid,bcfuchs/citizengrid,bcfuchs/citizengrid,bcfuchs/citizengrid,ImperialCollegeLondon/citizengrid,ImperialCollegeLondon/citizengrid,bcfuchs/citizengrid,bcfuchs/citizengrid,ImperialCollegeLondon/citizengrid,bcfuchs/citizengrid,ImperialCollegeLondon/citizengrid