Yes, it seems that vaccination of the mother leads to less protection of the infant. That is why some argue the vaccination age needs to be lowered:

>"An increasing proportion of children in the United States will respond to the measles vaccine at younger ages because of lower levels of passively acquired maternal measles antibodies. [...] Our data indicate that, in the future, when virtually all women of child-bearing age will have vaccine-induced immunity, the recommended age for vaccination may be able to be lowered further without diminishing vaccine efficacy" https://www.ncbi.nlm.nih.gov/pubmed/8545224

This isn't politically acceptable because people harbor a myth about the reason newborns are not vaccinated.