Initialize move constructor (backport #718)

[mergify]

🦟 Bug fix

Fixes #717

Summary

Properly initializes the move constructor.

Checklist

• Signed all commits for DCO
• Added tests
• Updated documentation (as needed)
• Updated migration guide (as needed)
• Consider updating Python bindings (if the library has them)
• codecheck passed (See contributing)
• All tests passed (See test coverage)
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This is an automatic backport of pull request #718 done by Mergify.