Previously: The pipeline.trigger_parameters.webhook.body pipeline value was only populated when a custom webhook triggered the pipeline. If a config used pipeline.trigger_parameters.webhook.body and the pipeline was triggered with a GitHub App event, an errored pipeline would occur. This made it difficult to use one configuration file with a custom webhook & GitHub App triggers.
New behavior: The pipeline.trigger_parameters.webhook.body pipeline value will be populated with an empty string if the pipeline is triggered from a GitHub App event. This simplifies using one configuration file with a custom webhook & GitHub App triggers.