Add chain height when fetching consensus parameters in initialization

Add chain height when fetching consensus parameters in initialization,
this code was missed in the first patch as it was disabled at the time.

src/init.cpp

@@ -1422,7 +1422,7 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler)
     StartNode(threadGroup, scheduler);
 
     // Monitor the chain, and alert if we get blocks much quicker or slower than expected
-    int64_t nPowTargetSpacing = Params().GetConsensus().nPowTargetSpacing;
+    int64_t nPowTargetSpacing = Params().GetConsensus(chainActive.Height()).nPowTargetSpacing;
     CScheduler::Function f = boost::bind(&PartitionCheck, &IsInitialBlockDownload,
                                          boost::ref(cs_main), boost::cref(pindexBestHeader), nPowTargetSpacing);
     scheduler.scheduleEvery(f, nPowTargetSpacing);