We are facing the same issue. The buttons are still there, but are CSS clipped to 1px x 1px x 1px x 1px apparently by the gin gutenberg helper module.
We worked around it in our custom theme by overriding the CSS that clips the edit action buttons buttons. The css selector was:
``` .gin-sticky-form-actions--preprocessed ~ .layout-container form.gin--has-sticky-form-actions .gin-sticky-form-actions ```
We are working on a better patch, but we're not sure if the patch should go in the quick node clone module or the gin+gutenberg helper module. The fix in the context of quick node clone is probably to add, or remove, something in the action form definition before its rendered so that it gets left alone by whatever process rewrites the form actions to apply the css properties we don't want in this case.
wendell → created an issue.