Removed bug that caused MapServer only to use the Oracle TranslateFil…

…ter method at the first call e.g. in an FCGI environment

unlike all other vtable assignments the
msOracleSpatialLayerTranslateFilter was set to layer->vtable and not to
vtable

maporaclespatial.c

@@ -3956,7 +3956,7 @@ PluginInitializeVirtualTable(layerVTableObj* vtable, layerObj *layer)
   assert(layer != NULL);
   assert(vtable != NULL);
 
-  layer->vtable->LayerTranslateFilter = msOracleSpatialLayerTranslateFilter;
+  vtable->LayerTranslateFilter = msOracleSpatialLayerTranslateFilter;
 
 
   vtable->LayerInitItemInfo = msOracleSpatialLayerInitItemInfo;