Guard against nullptr

nyalldawson · nyalldawson · commit 958dbb13ca2a · 2019-05-14T09:28:14.000+10:00
diff --git a/src/core/qgscoordinatereferencesystem.cpp b/src/core/qgscoordinatereferencesystem.cpp
@@ -80,14 +80,15 @@ QString getFullProjString( PJ *obj )
   // see https://lists.osgeo.org/pipermail/proj/2019-May/008565.html, it's not sufficient to just
   // use proj_as_proj_string
   QgsProjUtils::proj_pj_unique_ptr boundCrs( proj_crs_create_bound_crs_to_WGS84( QgsProjContext::get(), obj, nullptr ) );
-  if ( const char *proj4src = proj_as_proj_string( QgsProjContext::get(), boundCrs.get(), PJ_PROJ_4, nullptr ) )
+  if ( boundCrs )
   {
-    return QString( proj4src );
-  }
-  else
-  {
-    return QString( proj_as_proj_string( QgsProjContext::get(), obj, PJ_PROJ_4, nullptr ) );
+    if ( const char *proj4src = proj_as_proj_string( QgsProjContext::get(), boundCrs.get(), PJ_PROJ_4, nullptr ) )
+    {
+      return QString( proj4src );
+    }
   }
+
+  return QString( proj_as_proj_string( QgsProjContext::get(), obj, PJ_PROJ_4, nullptr ) );
 }
 #endif
 //--------------------------
