Issue

After updating RabbitMQ

From: rabbitmq-server-3.3.5-4.el7ost.noarch
To: rabbitmq-server-3.3.5-7.el7ost.noarch

and it's restarted, RabbitMQ run into race condition, and report crash.
Trigger is to restart its process, which is required by this update.

    2 =CRASH REPORT==== 14-Dec-2015::15:21:11 ===
    3   crasher:
    4     initial call: gen:init_it/6
    5     pid: <0.1871.0>
    6     registered_name: []
    7     exception exit: {bad_return_value,
    8                         {error,
    9                             {{badmatch,{error,not_found}},
   10                              [{gm,'-record_dead_member_in_group/3-fun-1-',2,
   11                                   [{file,"src/gm.erl"},{line,1123}]},
   12                               {mnesia_tm,apply_fun,3,
   13                                   [{file,"mnesia_tm.erl"},{line,832}]},
   14                               {mnesia_tm,execute_transaction,5,
   15                                   [{file,"mnesia_tm.erl"},{line,812}]},
   16                               {rabbit_misc,
   17                                   '-execute_mnesia_transaction/1-fun-0-',1,
   18                                   [{file,"src/rabbit_misc.erl"},{line,499}]},
   19                               {worker_pool_worker,handle_call,3,
   20                                   [{file,"src/worker_pool_worker.erl"},
   21                                    {line,89}]},
   22                               {gen_server2,handle_msg,2,
   23                                   [{file,"src/gen_server2.erl"},{line,1001}]},
   24                               {proc_lib,wake_up,3,
   25                                   [{file,"proc_lib.erl"},{line,249}]}]}}}
   26       in function  gen_server2:terminate/3 (src/gen_server2.erl, line 1133)
   27     ancestors: [<0.1869.0>,rabbit_mirror_queue_slave_sup,rabbit_sup,
   28                   <0.1240.0>]
   29     messages: []
   30     links: []
   31     dictionary: [{random_seed,{5969,6841,13088}},
   32                   {process_name,
   33                       {gm,{resource,<<"/">>,queue,
   34                               <<"*****************************">>}}}]
   35     trap_exit: false
   36     status: running
   37     heap_size: 2586
   38     stack_size: 27
   39     reductions: 2390
   40   neighbours: