Continuum-subtracted and extinction corrected Ca II triplet profiles (black) fitted by a sum (blue) of three Hα best-fit profiles from Fig. 9 to reproduce the complex line shape. We followed the approach by A17 and confirmed that this is also a good fit for the Ca II triplet at +302 d and +330 d. The spectral phases are shown on the right next to each spectrum. An excess blueward of the best line fit is compatible with the emerging of O I λ8446, but there is also Fe II that can contribute to the flux in that range.