PR checks only run against last commit when new commit pushed to PR

Workaround

There is no known workaround.

Problem

Expected behaviour: PR checks should display Spacelift plan results for all stacks affected by all commits in the PR, not just the last commit. Actual behaviour: Currently, if new commits are pushed to the open PR, the previous checks are wiped and new Spacelift PR checks trigger only against stacks affected by changes in the last commit ignoring any stacks affected by changes in prior commits in the same PR. This results in missing checks for stacks affected by changes in earlier commits. Steps to reproduce: 1. Create a PR from a feature branch into default branch of your terraform repository. 2. Push multiple commits to the PR branch. 3. Observe the Spacelift PR checks. 4. Note that only the last commit's checks are displayed, missing checks for earlier commits.