fix: match layer names ending with a digit in ignore_layers

auto_round/compressors/layer_config_resolver.py

@@ -205,7 +205,13 @@ def normalize_item(item: Union[str, dict, "QuantizationScheme"], layer_name: str
     ignore_layer_patterns = set()
     if ignore_layers:
         ignore_layers = ignore_layers.replace(" ", "").split(",")
-        ignore_layers = [name + "." if name[-1].isdigit() else name for name in ignore_layers]
+        # "layers.1" -> "layers.1." so it does not also match "layers.10", but only when modules sit
+        # under that name; a layer whose own name ends with a digit (e.g. "fc1") is kept as is.
+        module_names = [n for n, _ in model.named_modules()]
+        ignore_layers = [
+            name + "." if name[-1].isdigit() and any(name + "." in n for n in module_names) else name
+            for name in ignore_layers
+        ]
         ignore_layer_patterns = set(ignore_layers)
 
     # 1. ignore_layers -> force 16

test/unit/common/utils/test_set_layer_config.py

@@ -116,6 +116,13 @@ def test_block_level_name_ignores_entire_block(self, model_12layers):
         assert layer_config["layers.0.fc1"]["bits"] == 16
         assert layer_config["layers.0.fc2"]["bits"] == 16
 
+    def test_layer_name_ending_with_digit(self, model_12layers):
+        """'fc1' and 'layers.0.fc2' end with a digit but name layers, so they must still be ignored."""
+        layer_config, _, _ = _call_set_layer_config(model_12layers, ignore_layers="fc1,layers.0.fc2")
+        assert layer_config["layers.11.fc1"]["bits"] == 16
+        assert layer_config["layers.0.fc2"]["bits"] == 16
+        assert layer_config["layers.1.fc2"]["bits"] == 4
+
 
 class TestUnmatchedLayerConfigWarns:
     """An unrecognised key in layer_config must trigger a warning, not ValueError."""