Sign-On Bonus element removed when employment start date changed to earlier date

Summary:

Whenever there is an employment start date that is changed in PROD and the associate has a sign-on bonus element, the element is "removed."

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Version (include the version you are using, if applicable):

23D

Code Snippet (add any code snippets that support your topic, if applicable):

I dont have any currently, but I can get an example if necessary.