BuddyPress.org

I saw somthing strange in my wp_{site_id}_option

Option_id: 1172
Option_name: rewrite_rules
Option values:
bp_members=1&bp_member=$matches[1]&bp_member_component=$matches[2]&bp_member_action=$matches[3]&bp_member_action_variables=$matches[4]";s:36:"membres-3/([^/]+)/([^/]+)/([^/]+)/?$";