get XYZ plot to work with recent changes to refined specified in fields of p rather than in settings

modules/processing.py

@@ -746,7 +746,7 @@ def process_images_inner(p: StableDiffusionProcessing) -> Processed:
     if p.tiling is None:
         p.tiling = opts.tiling
 
-    if p.refiner_checkpoint not in (None, "", "None"):
+    if p.refiner_checkpoint not in (None, "", "None", "none"):
         p.refiner_checkpoint_info = sd_models.get_closet_checkpoint_match(p.refiner_checkpoint)
         if p.refiner_checkpoint_info is None:
             raise Exception(f'Could not find checkpoint with name {p.refiner_checkpoint}')

modules/processing_scripts/refiner.py

@@ -42,7 +42,7 @@ class ScriptRefiner(scripts.ScriptBuiltinUI):
         # the actual implementation is in sd_samplers_common.py, apply_refiner
 
         if not enable_refiner or refiner_checkpoint in (None, "", "None"):
-            p.refiner_checkpoint_info = None
+            p.refiner_checkpoint = None
             p.refiner_switch_at = None
         else:
             p.refiner_checkpoint = refiner_checkpoint