> SEOBNRv3: Reduce error when computing finite difference derivatives of analytic SEOBNRv3 Hamiltonian by increasing the finite difference step size. This greatly improves agreement with SEOBNRv3_opt (which uses analytical derivatives).
> SEOBNRv3/SEOBNRv3_opt: alpha Euler angle is not unwrapped properly in a small fraction (~ 1/100,000) of cases. This is corrected by replacing an if() statement with a simple while() loop that rarely goes to the second iteration.
>
> Closes Redmine 5977: https://bugs.ligo.org/redmine/issues/5977
>
> Author: Tyler Knowles
> Patch approved by: Riccardo Sturani