Asher Keddie pushes open the door of the Hummingbird cafe in Melbourne’s Elwood. In long slouchy brown Gucci boots, AG jeans and an oversized black jumper, she shrugs off her leather jacket and slides into a seat. It’s 12.30pm, but “I feel like, well, toast,” says Keddie, running her eye over the menu. She settles for a decidedly unstarry ham and cheese croissant instead, and apologises for being late. She’s not, not by so much as a minute. “What’s happened to me is [my] children are just in my mind the whole time,” admits the actress, “so although my nature is to be diligent about organisation, things slip my mind far more than they used to.” These days, she taps commitments into a calendar on both her phone and her…