pull --force fails with 0 error code

[wavexx]

I'm trying subrepo (dbb99be, current master).

I initialized a new subrepo, which I'm trying to pull from. Even though pull has nothing to do, using pull --force fails immediately in sequence as follows:

% git subrepo pull lib/Catch2
Subrepo 'lib/Catch2' is up to date.
% git subrepo pull --force lib/Catch2
Unknown pull error code: '0'
 at line 244 in command:pull of /usr/local/bin/git-subrepo

Expected?