Repository: huggingface/transformers
Pull request: Fix/siglip2 pooling comment

# What does this PR do?
This PR updates the Siglip2TextModel to simplify and clarify the logic for generating the pooled output. Specifically, it removes the ambiguous conditional logic and comment regarding the use of eos_token_id or padding tokens, and instead uses the last token's hidden state as the pooled representation

Additional Changes:
Adds a dedicated unit test in test_text_model.py to validate the forward pass behavior.
Cleans up minor formatting issues in the test file (ruff compliant).

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Fixes # (issue)


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Changed files:
filename: src/transformers/models/siglip/modeling_siglip.py
patch: @@ -664,7 +664,7 @@ def forward(
         last_hidden_state = encoder_outputs.last_hidden_state
         last_hidden_state = self.final_layer_norm(last_hidden_state)
 
-        # Assuming "sticky" EOS tokenization, last token is always EOS.
+        # The model uses the last token's hidden state, which may be padding.
         pooled_output = last_hidden_state[:, -1, :]
         pooled_output = self.head(pooled_output)
 

filename: src/transformers/models/siglip2/modeling_siglip2.py
patch: @@ -688,7 +688,7 @@ def forward(
         last_hidden_state = encoder_outputs.last_hidden_state
         last_hidden_state = self.final_layer_norm(last_hidden_state)
 
-        # Assuming "sticky" EOS tokenization, last token is always EOS.
+        # The model uses the last token's hidden state, which may be padding.
         pooled_output = last_hidden_state[:, -1, :]
         pooled_output = self.head(pooled_output)