Link Reversion in SDM on Discard draft

[deepikaSingh2711]

Describe your changes

Problem:
When users created or edited link attachments and then discarded the draft, the changes were properly reverted in the Attachments database but remained stale in the SDM repository. This caused data inconsistency between the frontend (showing original URL) and backend repository (retaining edited URL).
Fixed result:
Draft discard now properly synchronizes both the Attachments database and SDM repository, eliminating data inconsistency issues.

Type of change

Bug fix

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist before requesting a review

• I have tested the functionality on my cloud environment.
• I have provided sufficient automated/ unit tests for the code.
• I have increased or maintained the test coverage.
• I have ran integration tests on my cloud environment.
• I have validated blackduck portal for any vulnerability after my commit.

Upload Screenshots/lists of the scenarios tested

• I have Uploaded Screenshots or added lists of the scenarios tested in description

[deepikaSingh2711]

gemini review