I am trying to list Google Cloud builds and filter by `source.repo.commit_sha` as specified in the [Viewing build results](https://cloud.google.com/cloud-build/docs/view-build-results#filtering_build_results_using_queries) documentation, but my list is coming back with no items. I am using the following command:

```
gcloud builds list --filter "source.repo.commit_sha='${LONG_COMMIT_SHA}'"

```

I have tried using the short commit and the long commit SHA-1, but I am not getting any results. The SHA-1 value is the value from the commit that was pushed to github. I am using a trigger to initiate the build, the trigger works correctly.

I have search the internet for information about filtering with a given commit SHA-1, but I have been unable to find any useful information.

Can someone please help with a command to filter with a given commit SHA?