From ca1f8cddc9dcd4bfe90b9ae67a5bbac097f9fb90 Mon Sep 17 00:00:00 2001
From: James Turner <zakalawe@mac.com>
Date: Thu, 15 Oct 2015 20:05:35 -0500
Subject: [PATCH] Fix a package crash on startup.

---
 src/Main/fg_init.cxx | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/Main/fg_init.cxx b/src/Main/fg_init.cxx
index 3f5682f03..78a93bbe3 100644
--- a/src/Main/fg_init.cxx
+++ b/src/Main/fg_init.cxx
@@ -546,9 +546,11 @@ int fgInitAircraft(bool reinit)
             // code in FindAndCacheAircraft works as normal
             // note since we may be using a variant, we can't use the package ID
             size_t lastDot = aircraftId.rfind('.');
-            assert(lastDot != std::string::npos);
-            aircraftId = aircraftId.substr(lastDot + 1);
+            if (lastDot == std::string::npos) {
+                aircraftId = aircraftId.substr(lastDot + 1);
+            }
             aircraftProp->setStringValue(aircraftId);
+
             // run the traditional-code path below
         } else {
 #if 0
@@ -559,6 +561,7 @@ int fgInitAircraft(bool reinit)
 
             return flightgear::FG_OPTIONS_ERROR;
 #endif
+            // fall back the default aircraft instead
         }
     }
 
-- 
2.39.5