Fixes missing Rejuvenate resets

Now resets brain op stage (which was causing beheaded people to die
instantly after rejuv) and decay level (which made long-dead people all
icky)

code/modules/mob/living/living.dm

@@ -337,12 +337,14 @@
 		var/mob/living/carbon/C = src
 		C.handcuffed = initial(C.handcuffed)
 		C.heart_attack = 0
+		C.brain_op_stage = 0
 
 		// restore all of the human's blood and reset their shock stage
 		if(ishuman(src))
 			var/mob/living/carbon/human/human_mob = src
 			human_mob.restore_blood()
 			human_mob.shock_stage = 0
+			human_mob.decaylevel = 0
 
 	restore_all_organs()
 	if(stat == 2)