Should these titles be merged? How should I proceed?
https://www.imdb.com/title/tt11440124/ and https://www.imdb.com/title/tt12082786/ refer to the same opera. The first has more complete info, while the second add it to a series. What should I do to them and how should I do it?
External site with info: https://operavision.eu/en/library/performances/flashback/halka-poznan-opera