Apply slow correction to JPEG files

[Lorenzo F]

Hello
in the use of the software and more precisely using the assistant in the phase of correction of distortion of the lens, I realized that it is applied only during the phase of saving the file, so it is impossible to verify if the automatic correction has been applied in a way corrected or if other manuscripts are needed.
Moreover, the correction works only with RAW files, but using a Sigma camera and not using RAW files on Affinity but starting from JPEG files previously developed with the proprietary software of SIGMA, I do not have the possibility to use this feature, although it is usable with other software that exploit the lensfun library.
I therefore ask if there is a way to use it also on Affinity starting from JPEG files or possibly being implemented in the next version of the software.

Thank you
Lorenzo