Windows debug build crash fix.

apps/openmw/mwmechanics/aicombat.cpp

@@ -497,12 +497,12 @@ namespace MWMechanics
         //       coded at 250ms or 1/4 second
         //
         // TODO: Add a parameter to vary DURATION_SAME_SPOT?
+        MWWorld::CellStore *cell = actor.getCell();
         if((distToTarget > rangeAttack || mFollowTarget) &&
             mObstacleCheck.check(actor, tReaction)) // check if evasive action needed
         {
             // first check if we're walking into a door
             mDoorCheckDuration += 1.0f; // add time taken for obstacle check
-            MWWorld::CellStore *cell = actor.getCell();
             if(mDoorCheckDuration >= DOOR_CHECK_INTERVAL && !cell->getCell()->isExterior())
             {
                 mDoorCheckDuration = 0;
@@ -542,6 +542,8 @@ namespace MWMechanics
             }
         }
 
+        if(!cell->getCell()->isExterior() && !mDoors.mList.empty())
+        {
             MWWorld::LiveCellRef<ESM::Door>& ref = *mDoorIter;
             float minSqr = 1.6 * 1.6 * MIN_DIST_TO_DOOR_SQUARED; // for legibility
             // TODO: add reaction to checking open doors
@@ -559,11 +561,7 @@ namespace MWMechanics
                 //std::cout<<"open door id \""<<ref.mRef.mRefID<<"\""<<std::endl;
                 mMovement.mPosition[1] = 1;
             }
-        // these lines break ranged combat distance keeping
-        //else
-        //{
-        //    mMovement.mPosition[1] = 1;  // FIXME: oscillation?
-        //}
+        }
 
         return false;
     }