Adds the system discussed in the felinid poll, to allow for people with a felinid character to not be reset to human

code/controllers/configuration/entries/game_options.dm

@@ -154,6 +154,10 @@
 	key_mode = KEY_MODE_TEXT
 	value_mode = VALUE_MODE_FLAG
 
+/datum/config_entry/keyed_list/roundstart_no_hard_check // Species contained in this list will not cause existing characters with no-longer-roundstart species set to be resetted to the human race.
+	key_mode = KEY_MODE_TEXT
+	value_mode = VALUE_MODE_FLAG
+
 /datum/config_entry/flag/join_with_mutant_humans	//players can pick mutant bodyparts for humans before joining the game
 
 /datum/config_entry/flag/no_summon_guns	//No

code/modules/client/preferences.dm

@@ -1237,7 +1237,7 @@ GLOBAL_LIST_EMPTY(preferences_datums)
 							features["mcolor"] = sanitize_hexcolor(new_mutantcolor)
 						else
 							to_chat(user, "<span class='danger'>Invalid color. Your color is not bright enough.</span>")
-				
+
 				if("color_ethereal")
 					var/new_etherealcolor = input(user, "Choose your ethereal color", "Character Preference") as null|anything in GLOB.color_list_ethereal
 					if(new_etherealcolor)
@@ -1555,9 +1555,8 @@ GLOBAL_LIST_EMPTY(preferences_datums)
 	character.backbag = backbag
 
 	var/datum/species/chosen_species
-	if(!roundstart_checks || (pref_species.id in GLOB.roundstart_races))
-		chosen_species = pref_species.type
-	else
+	chosen_species = pref_species.type
+	if(!(pref_species.id in GLOB.roundstart_races) && !(pref_species.id in (CONFIG_GET(keyed_list/roundstart_no_hard_check))))
 		chosen_species = /datum/species/human
 		pref_species = new /datum/species/human
 		save_character()

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

@@ -74,7 +74,6 @@ GLOBAL_LIST_EMPTY(roundstart_races)
 	var/obj/item/organ/liver/mutantliver
 	var/obj/item/organ/stomach/mutantstomach
 	var/override_float = FALSE
-
 ///////////
 // PROCS //
 ///////////

config/game_options.txt

@@ -454,6 +454,10 @@ ROUNDSTART_RACES ethereal
 
 ##-------------------------------------------------------------------------------------------
 
+## Roundstart no-reset races
+## Races defined here will not cause existing characters to be reset to human if they currently have a non-roundstart species defined.
+#ROUNDSTART_NO_HARD_CHECK felinid
+
 ## Uncomment to give players the choice of joining as a human with mutant bodyparts before they join the game
 #JOIN_WITH_MUTANT_HUMANS