Issue1911

[KevinLeung611]

Ⅰ. Describe what this PR did

Ⅱ. Does this pull request fix one issue?

fix issue #1911

Ⅲ. Describe how you did it

Ⅳ. Describe how to verify it

Ⅴ. Special notes for reviews

[pouchrobot]

Thanks for your contribution. 🍻 @KevinLeung-nice
While we thought PR TITLE could be more specific, longer than 20 chars.
Please edit this PR title instead of opening a new one.
More details, please refer to https://github.com/alibaba/pouch/blob/master/CONTRIBUTING.md

[pouchrobot]

We found this is your first time to contribute to Pouch, @KevinLeung-nice
👏 We really appreciate it.
Just remind that you have read the contribution guide: https://github.com/alibaba/pouch/blob/master/CONTRIBUTING.md
If you didn't, you should do that first. If done, welcome again and please enjoy hacking! 🍻

[CLAassistant]

Thank you for your submission, we really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.

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shanbo.lkw seems not to be a GitHub user. You need a GitHub account to be able to sign the CLA. If you have already a GitHub account, please add the email address used for this commit to your account.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}

[pouchrobot]

@KevinLeung-nice Thanks for your contribution. 🍻
Please sign off in each of your commits.

[YaoZengzeng]

Would you please squash your commits to make them more clear?

Thank you :)

[pouchrobot]

ping @KevinLeung-nice
Conflict happens after merging a previous commit.
Please rebase the branch against master and push it back again. Thanks a lot.

[YaoZengzeng]

We have merged a PR which solve the same problem

Thanks for your work

Close this now :)