Paragraph can't be deleted from widget

When editing a paragraph with the ParagraphsWidget or with the InlineParagraphsWidget we can use the remove button. But this button doesn't delete de paragraph; even more it doesnt empty the Parent/Parent Type fields of the paragraph.
I have tested when there is no revision available for the parent node (and no revision created when the node is saved) but this is the same behavior, the Paragraph still have its parent at the end of the operation.