tests: register instead of install DummyStrategy

refs #3868

Change-Id: I5e44582625be51ef874e2a92e4bb7cc22d5b607b
diff --git a/daemon/table/strategy-choice.cpp b/daemon/table/strategy-choice.cpp
index 63e33ee..d801870 100644
--- a/daemon/table/strategy-choice.cpp
+++ b/daemon/table/strategy-choice.cpp
@@ -256,6 +256,7 @@
 void
 StrategyChoice::changeStrategy(Entry& entry, Strategy& oldStrategy, Strategy& newStrategy)
 {
+  ///\todo #3868 don't clear StrategyInfo if only parameter differs
   if (&oldStrategy == &newStrategy) {
     return;
   }