fix missing icon cache key generation data + poopy preview refresh (thanks verk <3)

code/modules/client/preference_setup/general/03_body.dm

@@ -1301,15 +1301,6 @@ var/global/list/valid_bloodtypes = list("A+", "A-", "B+", "B-", "AB+", "AB-", "O
 	//CHOMPEdit START
 	else if(href_list["digitigrade"])
 		pref.digitigrade = !pref.digitigrade
-
-		//I don't know how else to force a sprite update that doing the stupid thing below
-		pref.r_skin = 0
-		pref.b_skin = 0
-		if(pref.g_skin != 128)
-			pref.g_skin = 128
-		else
-			pref.g_skin = 135
-
 		return TOPIC_REFRESH_UPDATE_PREVIEW
 	//CHOMPEdit END
 	return ..()

code/modules/mob/living/carbon/human/update_icons.dm

@@ -293,6 +293,12 @@ var/global/list/damage_icon_parts = list() //see UpdateDamageIcon()
 				if(tail_style.clip_mask) //VOREStation Edit.
 					icon_key += tail_style.clip_mask_state
 
+			//ChompEDIT START
+			//icon_key addition for digitigrade switch
+			if(part.species.digitigrade && (part.organ_tag == BP_R_LEG  || part.organ_tag == BP_L_LEG || part.organ_tag == BP_R_FOOT || part.organ_tag == BP_L_FOOT))
+				icon_key += "_digi"
+			//ChompEDIT END
+
 	icon_key = "[icon_key][husk ? 1 : 0][fat ? 1 : 0][hulk ? 1 : 0][skeleton ? 1 : 0]"
 	var/icon/base_icon
 	if(human_icon_cache[icon_key])

code/modules/organs/organ_icon_ch.dm

@@ -6,6 +6,7 @@
 		var/IB = species.icobase
 		species.icobase = species.icodigi
 		. = ..()
+		icon_cache_key += "_digi"
 		species.icobase = IB
 	else
 		. = ..()