gamma_minimal doesn't work in get_peak_survival_fraction

[verenaaur]

you can choose from different fit functions in get_peak_survival_fraction but gamma_minimal = (x, v) -> gamma_peakshape(x, v.μ, v.σ, v.n, 0.0, 0.0, 0.0, v.background)causes the following error:

Errors:
type NamedTuple has no field skew_fraction
and
type NamedTuple has no field skew_width

Issue:
NamedTuple of gamma_minimal in get_standard_pseudo_prior of pseudo_priors.jl does not contain skew_fraction and skew_width (both are positional arguments in the function gamma_peakshape)

Note:
gamma_minimal does work in get_peak_survival_fraction with the changes in https://github.com/verenaaur/LegendSpecFits.jl/tree/gamma_min-fix but unsure if this approach is correct