Fix find_streak() for the case of streak=1

geostat.cpp

@@ -123,7 +123,8 @@ int find_streak(const std::multimap<std::time_t, const Cache*>& cc, std::tm& sta
 			start = cur_start_tm;
 		}
 		cur_str = 1;
-		cur_tm = cur_start_tm = *std::localtime(&i.first);
+		max_str = 1;
+		cur_tm = cur_start_tm = start = *std::localtime(&i.first);
 	}
 	return max_str;
 }