From build 15002 onwards Clink stopped working; now it’s working again, except that doskey macros aren’t working (though they are outside Clink):

C:\Users\me>doskey /macros
g=git $*

C:\Users\me>g
'g' is not recognized as an internal or external command,
operable program or batch file.

There doesn’t appear to be anything useful in clink.log.