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### _Why are the changes needed?_
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Make the `dev/merge_kyuubi_pr.py` work as expected on reopened PR.
### _How was this patch tested?_
- [ ] Add some test cases that check the changes thoroughly including negative and positive cases if possible
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Test passed on merge the reopened PR #807.
- [ ] [Run test](https://kyuubi.readthedocs.io/en/latest/tools/testing.html#running-tests) locally before make a pull request
Closes#809 from pan3793/merge_pr.
Closes#809
fd7176f8 [Cheng Pan] [INFRA] Support reopen pr in pr merge tool
cc02b5e2 [Cheng Pan] [INFRA] Fix typo in merge_kyuubi_pr script
Authored-by: Cheng Pan <chengpan@apache.org>
Signed-off-by: ulysses-you <ulyssesyou18@gmail.com>
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Refactor the key words after repo renamed.
### _How was this patch tested?_
- [ ] Add some test cases that check the changes thoroughly including negative and positive cases if possible
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