1950 Census two of the records that I entered show that the parent is a widowed but includes their wife's.
Perhaps that parent is a widower who has recently remarried? I'd have to look at the census for that particular person to help determine what happened.
I have seen this multiple times. It is an indexing error.
The plan is for more vital fields to be editable in the future (see link below with comments from AndLinda mod, with sample screens).