Editing imported sifz

I have made a sifz file with a character and imported it in another file and i get this error
The value you are trying to edit is in a composition
which doesn’t seem to be open. Open that composition and you
should be able to edit this value as normal.
Is there a way to completely disconnect them or import them without changing the source?

Yes there is. But a recent bug fix disabled that behavior. The correct way should import the file and export the canvas parameter of the paste canvas layer. That would make independent from the original source. I want to re-fix the old behavior and still correcting the known bug.

Found a way by copy pasting the contents of the imported sifz