In In re Marriage of Jafeman (1972) 29 Cal. App. 3d 244, the husband and wife lived in a house that had been the husband's separate property before their marriage. The wife testified that she believed that the house had become community property during the marriage. The court concluded that the wife's undisclosed belief about the character of the property "has no probative value as to the intent of the husband . . . ." ( Id. at pp. 258-259.)