Use fudged TRT transformed variable for DNN electronID
This is pretty identical to !60868 (merged)
Since now we are fudging the TRT variable the DNN should pick the right fudged variable (stored in a decoration written by EGammaVariableCorrection
) and not the one from the original xAOD.
This is not changing reconstruction, since EGammaVariableCorrection
is not run in reconstruction.