Vixy f5e37bc5b2 Fix: use s_scale=0 when IP-Adapter loaded but no face requested ...

When IP-Adapter FaceID is initialized, it modifies the pipeline's UNet
cross-attention layers. Calling raw pipeline() without face embeddings
leaves these layers in a broken state, causing corrupted output.

Solution: When IP-Adapter is loaded but no face_image provided, call
ip_model.generate() with s_scale=0.0 and zero embeddings to properly
disable face conditioning while satisfying the modified layers.

2026-01-01 22:01:18 -06:00

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