fix for crop_center variable (#4)

- fix for crop_center variable (9a6b469099bb500a69e49a82803a887068f6d38e)

app.py

@@ -209,6 +209,7 @@ def start_training(
     text_encoder_learning_rate,
     seed,
     resolution,
+    center_crop, 
     num_train_epochs,
     checkpointing_steps,
     prior_loss_weight,
@@ -252,7 +253,7 @@ def start_training(
         f"output_dir={slugged_lora_name}",
         f"mixed_precision={mixed_precision}",
         f"resolution={int(resolution)}",
-        f"center_crop={bool(True)}",
+        "center_crop",
         f"train_batch_size={int(train_batch_size)}",
         f"repeats={int(repeats)}",
         f"gradient_accumulation_steps={int(gradient_accumulation_steps)}",
@@ -435,7 +436,7 @@ def start_training_og(
             f"--output_dir={slugged_lora_name}",
             f"--mixed_precision={mixed_precision}",
             f"--resolution={int(resolution)}",
-            f"--center_crop={bool(True)}",
+            "--center_crop",
             f"--train_batch_size={int(train_batch_size)}",
             f"--repeats={int(repeats)}",
             f"--gradient_accumulation_steps={int(gradient_accumulation_steps)}",