LeViT safetensors load is broken by conversion code that wasn't deact…

…ivated

timm/models/levit.py

@@ -763,17 +763,18 @@ def checkpoint_filter_fn(state_dict, model):
     # filter out attn biases, should not have been persistent
     state_dict = {k: v for k, v in state_dict.items() if 'attention_bias_idxs' not in k}
 
-    D = model.state_dict()
-    out_dict = {}
-    for ka, kb, va, vb in zip(D.keys(), state_dict.keys(), D.values(), state_dict.values()):
-        if va.ndim == 4 and vb.ndim == 2:
-            vb = vb[:, :, None, None]
-        if va.shape != vb.shape:
-            # head or first-conv shapes may change for fine-tune
-            assert 'head' in ka or 'stem.conv1.linear' in ka
-        out_dict[ka] = vb
-
-    return out_dict
+    # NOTE: old weight conversion code, disabled
+    # D = model.state_dict()
+    # out_dict = {}
+    # for ka, kb, va, vb in zip(D.keys(), state_dict.keys(), D.values(), state_dict.values()):
+    #     if va.ndim == 4 and vb.ndim == 2:
+    #         vb = vb[:, :, None, None]
+    #     if va.shape != vb.shape:
+    #         # head or first-conv shapes may change for fine-tune
+    #         assert 'head' in ka or 'stem.conv1.linear' in ka
+    #     out_dict[ka] = vb
+
+    return state_dict
 
 
 model_cfgs = dict(