Description of the bug:

Looks like #19549 flipped --repository_cache_urls_as_default_canonical_id flag on by default which hurts rctx.download performance and breaks rules_oci's layer deduping mechanism completely.

Cross-ref: bazel-contrib/rules_oci#387

Which category does this issue belong to?

External Dependency

What's the simplest, easiest way to reproduce this bug? Please provide a minimal example if possible.

• clone https://github.com/bazel-contrib/rules_oci
• run bazel build //oci/tests/... --repository_cache_urls_as_default_canonical_id

Which operating system are you running Bazel on?

darwin/arm64

What is the output of bazel info release?

release 6.3.2

If bazel info release returns development version or (@non-git), tell us how you built Bazel.

No response

What's the output of git remote get-url origin; git rev-parse master; git rev-parse HEAD ?

No response

Is this a regression? If yes, please try to identify the Bazel commit where the bug was introduced.

No response

Have you found anything relevant by searching the web?

No response

Any other information, logs, or outputs that you want to share?

No response