This commit prevents duplicate issuable resource links to be added
requested to merge gitlab-community/gitlab:issue-377831-dont-allow-duplicate-resource-links-in-incidents-application-level into master
What does this MR do and why?
This commit prevents duplicate issuable resource links to be added at the application level. It does not guarantee consistence at the database layer.
Related to !139435 (closed)
MR acceptance checklist
This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.
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I have evaluated the MR acceptance checklist for this MR.
Edited by Tomasz Skorupa