Minor cleanup / fixes related to `experiment_title`/`experiment.context`
Minor cleanup / fixes related to `experiment_title`/`experiment.context`

PiperOrigin-RevId: 404784390
Change-Id: I12187957cf30b24c2ecc2fab3195701af24f353b
GitOrigin-RevId: 05b242496d151a6836518c5b39336e974207649b

deepmind/xmanager,deepmind/xmanager