‘jj split`isn't a workaround but their version of `git add -p`. The intent is to make the Index unspecial to make it easier to work with and not to get rid of i

‘jj split`isn't a workaround but their version of `git add -p`. The intent is to make the Index unspecial to make it easier to work with and not to get rid of it. If there are usability gaps between the jj's active commit and git's index, then they should be reported.