摘要：A mistake has been identified in the text describing the pro-
cess involved in obtaining Eq. (A.1). The Gaia passbands that
were used to calculate the observed colours (G BP − G RP ) in
the simulations are the ones by Evans et al. (2018), instead
of Maíz Apellániz & Weiler (2018), as was originally reported.
Consequently, Fig. A.1 has been corrected to include the points
with the Evans et al. (2018) passbands.
