Merge pull request #10280 from rabbitmq/mergify/bp/v3.12.x/pr-10279

rabbit_feature_flags: Trap `exit` signal in the controller (backport #10279)

Author: dumbbell

deps/rabbit/src/rabbit_ff_controller.erl

@@ -168,6 +168,7 @@ callback_mode() ->
     state_functions.
 
 init(_Args) ->
+    process_flag(trap_exit, true),
     {ok, standing_by, none}.
 
 standing_by(