tree cache size can be reduced without harmful effects
diff --git a/lib/object_cache.c b/lib/object_cache.c
index b38c757..8957a46 100644
--- a/lib/object_cache.c
+++ b/lib/object_cache.c
@@ -33,7 +33,7 @@
#include "got_lib_object_cache.h"
#define GOT_OBJECT_CACHE_SIZE_OBJ 256
-#define GOT_OBJECT_CACHE_SIZE_TREE 2048
+#define GOT_OBJECT_CACHE_SIZE_TREE 256
#define GOT_OBJECT_CACHE_SIZE_COMMIT 64
const struct got_error *