pull datastrutures bugfixes

diff --git a/modules/data-structures b/modules/data-structures
index f5df85596a66ff4eebf6d77d4ee1f215d391d5a1..cca2c832d0ae12a494564acb35922796dcc901ea 160000 (submodule)
--- a/modules/data-structures
+++ b/modules/data-structures
@@ -1 +1 @@
-Subproject commit f5df85596a66ff4eebf6d77d4ee1f215d391d5a1
+Subproject commit cca2c832d0ae12a494564acb35922796dcc901ea