Enable CI PR builds for Bitbucket forked repositories (external providers) Request Support CI pipeline execution for pull requests originating from Bitbucket forked repositories, even when: -The fork is owned by an external provider. -The base repository is defined as the pipeline’s codebase. Harness should correctly resolve and fetch PR refs for fork-based Bitbucket PRs and allow the pipeline to execute successfully. -Fork-based PRs trigger CI pipelines reliably. -Harness correctly resolves Bitbucket fork PR references and checks out the PR source code. -PR metadata (fork repo, source branch, commit SHA, target branch) is made available to the pipeline. -Pipeline execution does not fail due to PR ref resolution errors. -Behavior is consistent with PRs originating from the same repository.