Port of ccr/maintain_labels to EE
Does this MR meet the acceptance criteria?
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Changelog entry added, if necessary -
Tests added for this feature/bug - Conform by the code review guidelines
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Has been reviewed by a Backend maintainer
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End-to-end tests pass ( package-and-qa
manual pipeline job)
What are the relevant issue numbers?
#46098 - Labels of an issue get deleted when moving the issue
Edited by Coung Ngo