Linked ingredient Undo doesn't work

when there's a linked ingredient in a step, and I tap H2 or, it gets converted into a section. There's the pop-up "removed from the ingredients: ...", but tapping undo doesn't work. Currently it stays a section heading. It should be converted back into a numbered list. when I tap the box on the right (for quote or note, I don't even get the notification that an ingredient was removed, or the choice for undo)