[Fix] Apply language detection when adding fuzzy hashes

src/controller.c

@@ -3018,6 +3018,7 @@ rspamd_controller_accept_socket (gint fd, short what, void *arg)
 			"csession");
 	session->ctx = ctx;
 	session->cfg = ctx->cfg;
+	session->lang_det = ctx->lang_det;
 	REF_RETAIN (session->cfg);
 
 	session->from_addr = addr;

src/libserver/worker_util.h

@@ -77,6 +77,7 @@ struct rspamd_custom_controller_command {
 };
 
 struct rspamd_controller_worker_ctx;
+struct rspamd_lang_detector;
 
 struct rspamd_controller_session {
 	struct rspamd_controller_worker_ctx *ctx;
@@ -86,6 +87,7 @@ struct rspamd_controller_session {
 	gchar *classifier;
 	rspamd_inet_addr_t *from_addr;
 	struct rspamd_config *cfg;
+	struct rspamd_lang_detector *lang_det;
 	gboolean is_spam;
 	gboolean is_enable;
 };

src/plugins/fuzzy_check.c

@@ -2959,7 +2959,7 @@ fuzzy_process_handler (struct rspamd_http_connection_entry *conn_ent,
 	gint r, *saved, rules = 0, err_idx;
 
 	/* Prepare task */
-	task = rspamd_task_new (session->wrk, session->cfg, NULL, NULL);
+	task = rspamd_task_new (session->wrk, session->cfg, NULL, session->lang_det);
 	task->cfg = ctx->cfg;
 	task->ev_base = conn_ent->rt->ev_base;
 	saved = rspamd_mempool_alloc0 (session->pool, sizeof (gint));