get_model_info() hard-defaulted workload_type to T2V when the caller
didn't pass one. Models registered for a single non-T2V workload (e.g.
Matrix-Game-2.0, registered I2V-only) then failed pipeline resolution:
ValueError: Pipeline 'MatrixGame2I2VPipeline' is not supported for
pipeline type 'basic' and workload type 't2v'
This deterministically breaks the Matrix-Game-2.0 SSIM full-suite test.
When workload_type is None, derive it from the model's registered
ConfigInfo.workload_types: use it if the model registers exactly one
workload, otherwise keep the T2V fallback. Behavior is unchanged for
T2V models and for multi/empty registrations; only single-non-T2V
models (the broken case) change. config_info is resolved once, earlier.
alexzms
af01289b30