Describes the cause and action for error messages.
Error Message(English)：
pull request not showing changes
Updating base branch in PR does not recalculate files in diff - GitHub
https://github.com/isaacs/github/issues/750
About comparing branches in pull requests - GitHub Help
https://help.github.com/en/articles/about-comparing-branches-in-pull-requests
Pull Requests Not Reflecting Changes Pushed to Remote Branch ...
https://confluence.atlassian.com/bitbucketserverkb/pull-requests-not-reflecting-changes-pushed-to-re・・・
Commits missing from Pull Request merge on target branch ...
https://confluence.atlassian.com/bitbucketserverkb/commits-missing-from-pull-request-merge-on-target・・・
Pull Requests Not Reflecting Changes Pushed to Remote Branch ...
https://confluence.atlassian.com/stashkb/pull-requests-not-reflecting-changes-pushed-to-remote-branc・・・
Pull Request cannot be merged, or not showing latest commits ...
https://confluence.atlassian.com/bitbucketserverkb/pull-request-cannot-be-merged-or-not-showing-late・・・
GitHub pull request showing commits that are already in target ...
https://stackoverflow.com/questions/16306012/github-pull-request-showing-commits-that-are-already-in・・・
Github Pull Requests template not showing - Stack Overflow
https://stackoverflow.com/questions/52139192/github-pull-requests-template-not-showing
GitHub pull requests showing invalid diff for alre... - GitHub Community ...
https://github.community/t5/How-to-use-Git-and-GitHub/GitHub-pull-requests-showing-invalid-diff-for-・・・