Fixes #10746

Stumps can now be amputated, but not removed by taking damage.

code/modules/organs/organ_external.dm

@@ -270,7 +270,7 @@
 	owner.updatehealth() //droplimb will call updatehealth() again if it does end up being called
 
 	//If limb took enough damage, try to cut or tear it off
-	if(owner && loc == owner)
+	if(owner && loc == owner && !is_stump())
 		if(!cannot_amputate && config.limbs_can_break && (brute_dam + burn_dam) >= (max_damage * config.organ_health_multiplier))
 			//organs can come off in three cases
 			//1. If the damage source is edge_eligible and the brute damage dealt exceeds the edge threshold, then the organ is cut off.

code/modules/organs/organ_stump.dm

@@ -2,7 +2,6 @@
 	name = "limb stump"
 	icon_name = ""
 	dislocated = -1
-	cannot_amputate = 1
 
 /obj/item/organ/external/stump/New(var/mob/living/carbon/holder, var/internal, var/obj/item/organ/external/limb)
 	if(istype(limb))