diff --git a/ff/cb4d4bf25b567dffbf983f513b81bca6fd7755 b/ff/cb4d4bf25b567dffbf983f513b81bca6fd7755
new file mode 100644
index 00000000..3d91d82a
--- /dev/null
+++ b/ff/cb4d4bf25b567dffbf983f513b81bca6fd7755
@@ -0,0 +1 @@
+{"channels":[null]}