[LoRA] improve LoRA fusion tests (#11274)
* improve lora fusion tests
* more improvements.
* remove comment
* update
* relax tolerance.
* num_fused_loras as a property
Co-authored-by: BenjaminBossan <benjamin.bossan@gmail.com>
* updates
* update
* fix
* fix
Co-authored-by: BenjaminBossan <benjamin.bossan@gmail.com>
* Update src/diffusers/loaders/lora_base.py
Co-authored-by: Benjamin Bossan <BenjaminBossan@users.noreply.github.com>
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Co-authored-by: BenjaminBossan <benjamin.bossan@gmail.com>
Co-authored-by: Benjamin Bossan <BenjaminBossan@users.noreply.github.com>
