Fix change vs release bug.

app.py

@@ -153,48 +153,44 @@ with gr.Blocks() as demo:
       return (local_probs[idx] * 255).astype(np.uint8), float(local_pos[idx, 0]), \
              float(local_pos[idx, 1]), float(local_scale[idx, 0]), float(local_scale[idx, 1])
 
-    gr_slot_slider.change(
+    gr_slot_slider.release(
       fn=update_sliders,
       inputs=[gr_slot_slider, local_probs, local_pos, local_scale],
       outputs=[gr_image_2, gr_x_slider, gr_y_slider, gr_sx_slider, gr_sy_slider]
     )
 
     def update_pos_x(idx, val, local_pos):
-       local_pos = np.copy(local_pos)
        local_pos[idx - 1, 0] = val
        return local_pos
 
     def update_pos_y(idx, val, local_pos):
-       local_pos = np.copy(local_pos)
        local_pos[idx - 1, 1] = val
        return local_pos
 
     def update_scale_x(idx, val, local_scale):
-       local_scale = np.copy(local_scale)
        local_scale[idx - 1, 0] = val
        return local_scale
 
     def update_scale_y(idx, val, local_scale):
-       local_scale = np.copy(local_scale)
        local_scale[idx - 1, 1] = val
        return local_scale
 
-    gr_x_slider.change(
+    gr_x_slider.release(
        fn=update_pos_x,
        inputs=[gr_slot_slider, gr_x_slider, local_pos],
        outputs=local_pos
     )
-    gr_y_slider.change(
+    gr_y_slider.release(
        fn=update_pos_y,
        inputs=[gr_slot_slider, gr_y_slider, local_pos],
        outputs=local_pos
     )
-    gr_sx_slider.change(
+    gr_sx_slider.release(
        fn=update_scale_x,
        inputs=[gr_slot_slider, gr_sx_slider, local_scale],
        outputs=local_scale
     )
-    gr_sy_slider.change(
+    gr_sy_slider.release(
        fn=update_scale_y,
        inputs=[gr_slot_slider, gr_sy_slider, local_scale],
        outputs=local_scale