Maybe its my observation, but a short story's character development is different from a novel's character development. You have to reveal character details in a shorter amount of time.
In general I'm increasing defining it as: backstory + fatal flaw + obtains goal through backstory + trials of failure to reach goal + mc fails or achieves goal + epilogue.
I add epillogue, as very rarely do I kill characters these days, even in when ending is dark. The key is the epilogue setting up for a new chapter.
Its why to me the hero's journey doesn't work to me, because it assumes a MC will have one overarching goal throughout a 25,000 word / 300 comic page arc.