xC: transcode input editor output back

xC.c

@@ -13973,11 +13973,16 @@ input_editor_process (struct app_context *ctx)
 		error_free (e);
 	}
 	else
-		input_clear_line (ctx->input);
-
-	if (!input_insert (ctx->input, input.str))
-		log_global_error (ctx, "#s: #s", "Input editing failed",
-			"could not re-insert the modified text");
+	{
+		// Even if it was already in UTF-8, this should verify it.
+		char *converted = iconv_xstrdup
+			(ctx->term_to_utf8, input.str, input.len + 1, NULL);
+		if (!converted)
+			print_error ("character conversion failed for: %s", "input");
+		else
+			input_replace_line (ctx->input, converted);
+		free (converted);
+	}
 
 	str_free (&input);
 }