[merge] Map GSUB/GPOS feature / lookup indices properly
diff --git a/Lib/fontTools/ttLib/tables/otBase.py b/Lib/fontTools/ttLib/tables/otBase.py
index 6a7a63b..ad1eb56 100644
--- a/Lib/fontTools/ttLib/tables/otBase.py
+++ b/Lib/fontTools/ttLib/tables/otBase.py
@@ -496,6 +496,9 @@
 
 class BaseTable(object):
 
+	def __hash__(self):
+		return id(self)
+
 	def __getattr__(self, attr):
 		reader = self.__dict__.get("reader")
 		if reader:
@@ -507,7 +510,6 @@
 
 		raise AttributeError(attr)
 
-
 	"""Generic base class for all OpenType (sub)tables."""
 	
 	def getConverters(self):