Tracking: Fix missing pointer array check when reading plane track

This could cause memory corruption when moving files from system with one
bitness to another.

source/blender/blenloader/intern/readfile.c

@@ -7075,7 +7075,7 @@ static void direct_link_moviePlaneTracks(FileData *fd, ListBase *plane_tracks_ba
 		int i;
 
 		plane_track->point_tracks = newdataadr(fd, plane_track->point_tracks);
-
+		test_pointer_array(fd, (void**)&plane_track->point_tracks);
 		for (i = 0; i < plane_track->point_tracksnr; i++) {
 			plane_track->point_tracks[i] = newdataadr(fd, plane_track->point_tracks[i]);
 		}