How to override "Links on .... have been updated" Message

Hello all,

I have extended the Issue Linking dialog by extending the “AbstractIssueLinkAction” and the" create-issue-link-types" section.
Everything works fine but now, after creating the link and when the dialog is closed, I want to adapt the message being showed : “Links on … have been updated” and to display some other text based on the link creation result.

I tried several approaches, like
“return returnMsgToUser”
“return returnCompleteWithInlineRedirectAndMsg”
but it seems like everything I do gets later overridden by the default text from somewhere and my text is not shown.

Any help would be highly appreciated.
Thank you!