Changelings now update their flavor text upon transforming. Updates DNA to include flavor text. (#26094)

* Fixes https://github.com/ParadiseSS13/Paradise/issues/3352

* bleugh

code/modules/client/preference/character.dm

@@ -1909,6 +1909,7 @@
 
 	character.change_eye_color(e_colour, skip_icons = TRUE)
 	character.original_eye_color = e_colour
+	character.dna.flavor_text = flavor_text
 
 	if(disabilities & DISABILITY_FLAG_FAT)
 		character.dna.SetSEState(GLOB.fatblock, TRUE, TRUE)

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

@@ -1004,16 +1004,16 @@
 		dna.real_name = name
 	return name
 
-/mob/living/carbon/human/proc/change_dna(datum/dna/new_dna, include_species_change = FALSE, keep_flavor_text = FALSE)
+/mob/living/carbon/human/proc/change_dna(datum/dna/new_dna, include_species_change = FALSE)
 	if(include_species_change)
 		set_species(new_dna.species.type, retain_damage = TRUE, transformation = TRUE, keep_missing_bodyparts = TRUE)
 	dna = new_dna.Clone()
 	if(include_species_change) //We have to call this after new_dna.Clone() so that species actions don't get overwritten
 		dna.species.on_species_gain(src)
 	real_name = new_dna.real_name
+	if(dna.flavor_text)
+		flavor_text = dna.flavor_text
 	domutcheck(src, MUTCHK_FORCED) //Ensures species that get powers by the species proc handle_dna keep them
-	if(!keep_flavor_text)
-		flavor_text = ""
 	dna.UpdateSE()
 	dna.UpdateUI()
 	sync_organ_dna(TRUE)

code/modules/mob/mob.dm

@@ -767,11 +767,13 @@ GLOBAL_LIST_INIT(slot_equipment_priority, list( \
 		to_chat(usr, "<span class='notice'>You have to be conscious to change your flavor text</span>")
 		return
 	msg = copytext(msg, 1, MAX_MESSAGE_LEN)
+	if(dna)
+		dna.flavor_text = msg // Only carbon mobs have DNA.
 	flavor_text = msg
 
 /mob/proc/print_flavor_text(shrink = TRUE)
 	if(flavor_text && flavor_text != "")
-		var/msg = replacetext(flavor_text, "\n", " ")
+		var/msg = !dna.flavor_text ? replacetext(dna.flavor_text, "\n", " ") : replacetext(flavor_text, "\n", " ")
 		if(length(msg) <= 40 || !shrink)
 			return "<span class='notice'>[msg]</span>" // There is already encoded by tgui_input
 		else

code/modules/reagents/chemistry/reagents/toxins.dm

@@ -227,7 +227,7 @@
 			var/mob/living/carbon/human/H = M
 			var/datum/dna/D = data["dna"]
 			if(!D.species.is_small)
-				H.change_dna(D, TRUE, TRUE)
+				H.change_dna(D, TRUE)
 
 	return ..()