source checkpoint hash from current checkpoint

modules/textual_inversion/textual_inversion.py

@@ -286,10 +286,8 @@ def train_embedding(embedding_name, learn_rate, data_root, log_directory, steps,
 
                 pre_lines = [((255, 207, 175),"<{}>".format(data.get('name','???')))]
                 
-                caption_checkpoint_hash = data.get('sd_checkpoint')
-                if caption_checkpoint_hash is None:
-                    caption_checkpoint_hash = data.get('hash')
-                caption_checkpoint_hash = caption_checkpoint_hash.upper() if caption_checkpoint_hash else 'UNKNOWN'
+                checkpoint = sd_models.select_checkpoint()
+                caption_checkpoint_hash = checkpoint.hash
                 
                 caption_stepcount = data.get('step',0)
                 caption_stepcount = caption_stepcount if caption_stepcount else 0