Richard Harrison refers to himself as his own son

In the biography for Richard Harrison (II) [https://www.imdb.com/name/nm0365835/bio] there are two circular references in the Trivia section:
 "Son and namesake of veteran B-movie actor Richard Harrison."  The link takes you back to Richard Harrison (II).
 "Father of Richard Harrison."  That link also takes you back to Richard Harrison (II).

He can't be his own father, or his own son.  Perhaps his deceased son was also named Richard Harrison, but he would be on a different page, if he's in IMDb at all.