Yeah. I watched it with the default theatrical ending, which in the moment I didn't mind and even found somewhat...amusing. The cosmic joke aspect made me involuntarily laugh out loud. Thematically I thought it fit, in terms of yet another absurd twist of fate which is something the entire story was predicated on. It doesn't make a lot of logistical sense when you reflect on it, but there is some satisfaction in an unambiguous ending.
Within minutes of reflection though, it started to smack of being a cheap, easy punchline.

I watched the original end afterwards. I could see where the ambiguity would be frustrating for some people (hence the somewhat dumbed down, definitive ending that anyone could "get"). At the same time though, that unresolved nature was more adult, and lent the film's previous events a lot more nobility.
A very slow fadeout would have helped that ending quite a bit, had they actually went with it.

Next time I watch it, it will be with the original end.

For me the film is as fascinating to mull over from a storytelling perspective as it is for it's inherent themes.