My Fiance has obtained a 6 month visa in order to come to the UK and we wish to marry and go on to get IDLR in 5 years time.
Her visa states "Type: D- PARTNER (STANDARD) standard " then my name
Trying to arrange giving notice of marriage the registrar says that this visa is not a marriage/fiance visa and we need home office permission to marry.

My understanding is there is a "Marriage Visitor Visa" - but you have to leave the UK after marrying and that there isn't actually "Fiance Visa" any more, what you actually get is a "Family Visa" for six months.
My question is - is the wording on her visa correct? If not, what should it say?
Thanks for any comments or information!