Priority Group Activation ( Preemption question)

[root@ve1023:Active] config  b virtual bar list
virtual bar {
   snat automap
   destination 172.28.19.79:22
   ip protocol 6
   rules myrule
}
[root@ve1023:Active] config  b pool foo1 list
pool foo1 {
   monitor all tcp
   members 200.200.200.101:22 {}
}
[root@ve1023:Active] config  b pool foo2 list
pool foo2 {
   monitor all tcp
   members 200.200.200.102:22 {}
}
[root@ve1023:Active] config  b rule myrule list
rule myrule {
   when RULE_INIT {
   set static::pool1 foo1
   set static::pool2 foo2
}

when CLIENT_ACCEPTED {
   set vs "[IP::local_addr]:[TCP::local_port]"

   if {[table lookup current_pool] eq ""} {
      table set current_pool $static::pool1 indef indef
   }

   if {[active_members [table lookup current_pool]] < 1} {
      if {[table lookup current_pool] eq $static::pool1} {
         set new $static::pool2
      } elseif {[active_members $static::pool1] > 0} {
         set new $static::pool1
      } else {
         reject
         return
      }
      table set current_pool $new 0 0
   }
   pool [table lookup current_pool]
}

when SERVER_CONNECTED {
   log local0. "[IP::client_addr]:[TCP::client_port] -> $vs -> [IP::remote_addr]:[TCP::remote_port]"
}
}

[root@ve1023:Active] config  cat /var/log/ltm
Feb  9 09:40:24 local/tmm info tmm[4822]: Rule myrule : 192.168.204.8:62065 -> 172.28.19.79:22 -> 200.200.200.101:22
Feb  9 09:40:50 local/ve1023 notice mcpd[3746]: 01070638:5: Pool member 200.200.200.101:22 monitor status down.
Feb  9 09:40:50 local/tmm err tmm[4822]: 01010028:3: No members available for pool foo1
Feb  9 09:40:59 local/tmm info tmm[4822]: Rule myrule : 172.28.19.253:58019 -> 172.28.19.79:22 -> 200.200.200.102:22
Feb  9 09:41:21 local/tmm err tmm[4822]: 01010221:3: Pool foo1 now has available members
Feb  9 09:41:24 local/ve1023 notice mcpd[3746]: 01070727:5: Pool member 200.200.200.101:22 monitor status up.
Feb  9 09:41:46 local/tmm info tmm[4822]: Rule myrule : 172.28.19.251:50606 -> 172.28.19.79:22 -> 200.200.200.102:22

the last log shows a new connection was still sent to foo2 pool even foo1 pool was back.