Updates hydra: c764b10 Fix: sync-media: filter out added files when adding hidden...

diff --git a/hydra b/hydra
index 8f07b9dbc5bd4a8c5bfd1deb8c9b10b4b2106eb9..c764b10fe91b85bfe6342592c4f8fc835892115e 160000 (submodule)
--- a/hydra
+++ b/hydra
@@ -1 +1 @@
-Subproject commit 8f07b9dbc5bd4a8c5bfd1deb8c9b10b4b2106eb9
+Subproject commit c764b10fe91b85bfe6342592c4f8fc835892115e