After the support for shortcut migration was added in CCMA, shortcuts do get migrated. 

But neither the legacy link fixing method at 

https://confluence.atlassian.com/confkb/legacy-link-fixing-after-a-successful-server-to-cloud-migration-url-links-are-broken-in-the-new-cloud-instance-1271267903.html 

nor the new product link fixing as per 

https://support.atlassian.com/migration/docs/supported-products-and-types-of-links/ 

Can fix such URLs in space shortcuts.

So please add the capability to fix these URLs.