fix when restoring, the machine key is lost

[panda-sheep]

What type of PR is this?

• bug
• feature
• enhancement

What problem(s) does this PR solve?

Issue(s) number:

Description:

fix when restoring, the machine key is lost.
Examples are as follows:

During restore, the mapping relationship of hosts is as follows

211 -> 213
212 -> 212
213 -> 211

When the restore is over, there are only 211, 212, two machine keys left, and the 213 machine key is lost.

How do you solve it?

Special notes for your reviewer, ex. impact of this fix, design document, etc:

Checklist:

Tests:

• Unit test(positive and negative cases)
• Function test
• Performance test
• N/A

Affects:

• Documentation affected (Please add the label if documentation needs to be modified.)
• Incompatibility (If it breaks the compatibility, please describe it and add the label.）
• If it's needed to cherry-pick (If cherry-pick to some branches is required, please label the destination version(s).)
• Performance impacted: Consumes more CPU/Memory

Release notes:

Please confirm whether to be reflected in release notes and how to describe:

ex. Fixed the bug .....

[pengweisong]

Good Job