Exception corner case.

Cython/Compiler/Nodes.py

@@ -4497,7 +4497,8 @@ class ExceptClauseNode(Node):
         else:
             code.putln("/*except:*/ {")
 
-        if not getattr(self.body, 'stats', True):
+        if not getattr(self.body, 'stats', True) and
+                self.excinfo_target is None and self.target is None):
             # most simple case: no exception variable, empty body (pass)
             # => reset the exception state, done
             code.putln("PyErr_Restore(0,0,0);")