Help with avoiding Reselect bug in LB_Failed

 
 when CLIENT_ACCEPTED { 
   set lb_retrys 0 
   set maint 0 
   set clip [IP::client_addr] 
   if { [LB::status pool pool_80 member $clip 80] eq “up” } { 
     pool pool_80 member $clip 80 
   } elseif { [active_members pool_80] >= 4 } { 
     LB::mode rr 
     LB::reselect pool pool_80 
   } else { 
     set maint 1 
   } 
 } 
  
 when HTTP_REQUEST { 
    if { $maint = 1 } { 
       HTTP::redirect http://maintenance_window_page 
    } 
 } 
  
 when LB_SELECTED { 
   if { lb_retries >= 1 } { 
     LB::mode rr 
     LB::reselect pool pool_80 
   } 
 } 
  
 when LB_FAILED { 
   if { $lb_retrys < [active_members pool_80] } { 
     persist none 
     LB::mode rr 
     LB::reselect pool pool_80 
   } else { 
     HTTP::redirect http://maintenance_window_page 
   } 
   incr lb_retrys 
 }