[Bug] Interpolation in Hydra config node not working correctly

[omry]

repro:

from omegaconf import DictConfig
import hydra
from hydra.core.hydra_config import HydraConfig

@hydra.main(config_name="config")
def experiment(_cfg: DictConfig) -> None:
    print(HydraConfig.get().job_logging.handlers.file.filename)


if __name__ == "__main__":
    experiment()

Output:

Traceback (most recent call last):
  File "/home/omry/dev/hydra/examples/configure_hydra/job_name/with_config_file_override.py", line 10, in experiment
    print(HydraConfig.get().job_logging.handlers.file.filename)
omegaconf.errors.ConfigKeyError: str interpolation key 'hydra.job.name' not found
	full_key: hydra.job_logging.handlers.file.filename
	reference_type=Any
	object_type=dict

[omry]

This is backported to Hydra 1.0 (#1338) and will be released with 1.0.6.