Fixed bug where units left influence behind in some circumstances.

OpenRa.Game/Traits/Mobile.cs

@@ -249,9 +249,8 @@ namespace OpenRa.Game.Traits
 						var nextCell = parent.path[ parent.path.Count - 1 ];
 						if( ( nextCell - mobile.toCell ) != ( mobile.toCell - mobile.fromCell ) )
 						{
-							if( !CanEnterCell( nextCell, self ) )
-								return null;
-
+							if( CanEnterCell( nextCell, self ) )
+							{
 								parent.path.RemoveAt( parent.path.Count - 1 );
 
 								var ret = new MoveFirstHalf(
@@ -266,6 +265,7 @@ namespace OpenRa.Game.Traits
 								return ret;
 							}
 						}
+					}
 					var ret2 = new MoveSecondHalf(
 						BetweenCells( mobile.fromCell, mobile.toCell ),
 						CenterOfCell( mobile.toCell ),