fix: correctly calculate refiner switch when overwrite_switch is > 0 (l…

…llyasviel#2165)

When using custom steps, the calculation of switching timing is wrong. Now it is modified to calculate "steps x timing" after custom steps are used.
By @xhoxye

modules/async_worker.py

@@ -335,11 +335,11 @@ def handler(async_task):
         ip_adapter.load_ip_adapter(clip_vision_path, ip_negative_path, ip_adapter_path)
         ip_adapter.load_ip_adapter(clip_vision_path, ip_negative_path, ip_adapter_face_path)
 
-        switch = int(round(steps * refiner_switch))
-
         if advanced_parameters.overwrite_step > 0:
             steps = advanced_parameters.overwrite_step
 
+        switch = int(round(steps * refiner_switch))
+
         if advanced_parameters.overwrite_switch > 0:
             switch = advanced_parameters.overwrite_switch