DMAPI Topic before initialization patch

src/DMAPI/tgs.dm

@@ -1,6 +1,6 @@
 // tgstation-server DMAPI
 
-#define TGS_DMAPI_VERSION "5.2.3"
+#define TGS_DMAPI_VERSION "5.2.4"
 
 // All functions and datums outside this document are subject to change with any version and should not be relied on.
 

src/DMAPI/tgs/v5/api.dm

@@ -15,8 +15,10 @@
 	var/datum/tgs_revision_information/revision
 	var/list/chat_channels
 
+	var/initialized = FALSE
+
 /datum/tgs_api/v5/ApiVersion()
-	return new /datum/tgs_version("5.2.3")
+	return new /datum/tgs_version("5.2.4")
 
 /datum/tgs_api/v5/OnWorldNew(minimum_required_security_level)
 	server_port = world.params[DMAPI5_PARAM_SERVER_PORT]
@@ -79,6 +81,7 @@
 	chat_channels = list()
 	DecodeChannels(runtime_information)
 
+	initialized = TRUE
 	return TRUE
 
 /datum/tgs_api/v5/proc/RequireInitialBridgeResponse()
@@ -95,10 +98,13 @@
 	return json_encode(response)
 
 /datum/tgs_api/v5/OnTopic(T)
+	if(!initialized)
+		return FALSE	//continue world/Topic
+
 	var/list/params = params2list(T)
 	var/json = params[DMAPI5_TOPIC_DATA]
 	if(!json)
-		return FALSE	//continue world/Topic
+		return FALSE
 
 	var/list/topic_parameters = json_decode(json)
 	if(!topic_parameters)