The writers at Paramount/Famous Studios must've been running out of ideas in the 50's.
How else to explain this Popeye offering, "Big Bad Sindbad", from 1952? Popeye (Jack Mercer) has 3 of his nephews with him on a trip to the Nautical Museum, where the kids start goofing around, making Popeye concerned that the four of them could get thrown out. He finally sits them down to recount his adventure with Sindbad (that's how they spelled it, likely for copyright reasons), which had originally been told nearly 20 years earlier by the Fleischers.
Courtesy of the Internet Archive. The print, by the way, is an AAP (Associated Artists Productions) reissue, fairly common in syndication in the 70's.
This wasn't the first time they recycled material, and wouldn't be the last.