diff -r 67185e65f020 -r 08cf02efc7ce cubicweb/web/request.py
--- a/cubicweb/web/request.py	Fri Nov 18 17:50:56 2016 +0100
+++ b/cubicweb/web/request.py	Thu Nov 24 15:36:26 2016 +0100
@@ -1009,11 +1009,8 @@
     def cached_entities(self):
         return self.transaction_data.get('req_ecache', {}).values()
 
-    def drop_entity_cache(self, eid=None):
-        if eid is None:
-            self.transaction_data.pop('req_ecache', None)
-        else:
-            del self.transaction_data['req_ecache'][eid]
+    def drop_entity_cache(self):
+        self.transaction_data.pop('req_ecache', None)
 
 
 CubicWebRequestBase = ConnectionCubicWebRequestBase