This fixes single move (we look at the density scan).

dispatchers.cpp

@@ -651,6 +651,16 @@ void MoveDispatch::server_prompt(const std::string &prompt) {
     if (at_command_prompt(prompt)) {
       // Ok, density is done
       // BUG:  If the sector is adjacent, this doesn't check density!
+      density d = director.galaxy.dscan.find(move_to);
+      if (d.sector == move_to) {
+        // Yes! we found the sector in the scan!
+        if (! density_clear(d)) {
+          BUGZ_LOG(fatal) << "Failed density check on single move.";
+          success = false;
+          deactivate();
+          return;
+        }
+      }
       std::string command = str(boost::format("M%1%\r") % move_to);
       to_server(command);
       state = 3;