I am an artist and an architectural photographer who has had paintings reproduced in magazines and I haven't ever been asked for a property release. I think the important distinction is that the painting is a part of a creative composition made by the photographer. Even in architecture the architect retains the copyright for their design, however since architecture is 3d it is impossible to reproduce without making artistic decisions of your own. Obviously, if you photograph a painting and crop at the edges you haven't added anything so to materially benefit would be wrong.
Some artists are just crazy, when I have a designer that likes to buy and place my work in their designs I am absolutely thrilled. It puts more eyeballs on my artwork. I can't think of a downside because a nice photo in a magazine or book doesn't compete with me in any way. If the person buying the interior photo decides they must have one of my paintings, they will still look me up and buy a painting.