There is a difference between the behaviour of profiles lens correction and that of manual distortion correction (on the transform tab).
When I use distortion correction (even if I use its automatic button) the program does not crop part of the edges or try to add pixels to fill out edges ans straighten them out. It only does that If I check the auto-fill box under lens-geometry.
However if, instead, use profiled lens correction and the lensfun profiles then the program does add pixels and crop as necessary to give a straight edge.
Is this working as intended, and if so could I ask the developers to make that behaviour optional.
Using Version: 5.8-2482-gea156df1a