From 682c229313f15226b28c3c073b1d014a9295b0b3 Mon Sep 17 00:00:00 2001
From: James Turner <zakalawe@mac.com>
Date: Sun, 29 Oct 2017 14:00:59 +0000
Subject: [PATCH] Preserve loaded flight plan departure/arrival
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When loading or cloning, don’t flag the departure and arrival as
changing, since this forces it to be discarded and rebuilt.
---
 src/Navaids/FlightPlan.cxx | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/Navaids/FlightPlan.cxx b/src/Navaids/FlightPlan.cxx
index 23349b4a7..b71c5b28b 100644
--- a/src/Navaids/FlightPlan.cxx
+++ b/src/Navaids/FlightPlan.cxx
@@ -118,6 +118,10 @@ FlightPlan* FlightPlan::clone(const string& newIdent) const
   c->setSTAR(_star);
   c->setSID(_sid);
   
+// mark data as unchanged since this is a clean plan
+  c->_arrivalChanged = false;
+  c->_departureChanged = false;
+    
 // copy legs
   c->_waypointsChanged = true;
   for (int l=0; l < numLegs(); ++l) {
@@ -692,6 +696,10 @@ bool FlightPlan::load(const SGPath& path)
     setIdent(path.file_base());
   }
   
+  // mark data as unchanged since this is a clean plan
+  _arrivalChanged = false;
+  _departureChanged = false;
+    
   _waypointsChanged = true;
   unlockDelegates();