fix outpaint in inpaint_only+lama

the problem in inpaint_only+lama+"Resize and Fill" is fixed now.
SDXL+inpaint_only+lama+"Resize and Fill"+inpaint_fooocus_v26+"stop at 0.5 or 0.6" can be used as one SOTA outpaint method now

extensions-builtin/forge_preprocessor_inpaint/scripts/preprocessor_inpaint.py

@@ -21,6 +21,7 @@ class PreprocessorInpaint(Preprocessor):
         self.model_filename_filters = ['inpaint']
         self.slider_resolution = PreprocessorParameter(visible=False)
         self.fill_mask_with_one_when_resize_and_fill = True
+        self.expand_mask_when_resize_and_fill = True
 
     def process_before_every_sampling(self, process, cond, mask, *args, **kwargs):
         mask = mask.round()