cschroers

Hi @sarchome, thanks for picking this up. At the time of writing the request, the `from_xml()` code looked something like this (probably around [e5035f7](https://github.com/AcademySoftwareFoundation/OpenImageIO/commit/e5035f712f3d965a0eb62a95d06fd2d2dc370d0c) 4 years ago): ``` void ImageSpec::from_xml(const...