$ jj git init
$ echo hi > executable_file && chmod +x executable_file
$ echo hi > other_file
$ jj split        # pick only executable_file
$ jj status
Working copy changes:
M executable_file
A some_other_file
Working copy : ysmvmwqx edefcfd6 (no description set)
Parent commit: zosvqltr 1fca1963 Commit executable file
$ jj diff
Non-executable file became executable at executable_file:
Added regular file some_other_file:
        1: hi