fix: check watch non-empty list (#2194) (#2253)
fix: check watch non-empty list (#2194) (#2253)

* fix: check watch non-empty list (#2194)
Co-authored-by: Boris Dayma <5671022c2ab66ccf8b6ffaa47b5d2841de09a5d0@gmail.com>
wandb/client,wandb/client,wandb/client