table: clear StrategyInfo only if Strategy type differs

refs #3868

Change-Id: I164ccba3bd6c69cef9d2ebba303f8d8d941aac99
diff --git a/daemon/fw/strategy.hpp b/daemon/fw/strategy.hpp
index b7b7adb..99ed1dc 100644
--- a/daemon/fw/strategy.hpp
+++ b/daemon/fw/strategy.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2014-2016,  Regents of the University of California,
+ * Copyright (c) 2014-2017,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -70,6 +70,11 @@
   static unique_ptr<Strategy>
   create(const Name& instanceName, Forwarder& forwarder);
 
+  /** \return whether \p instanceNameA and \p instanceNameA will initiate same strategy type
+   */
+  static bool
+  areSameType(const Name& instanceNameA, const Name& instanceNameB);
+
   /** \return registered versioned strategy names
    */
   static std::set<Name>