git {pull,push} fails without stdin

This was seen in git 1.6.0.2...

I want to run "git push" in an automated system and, as there's no sensible stdin to use, I close fd 0 before exec'ing. However, it does not work:

  sh$ git push <&-
  fatal: read error (Bad file descriptor)

compared to:

  sh$ git push
  Everything up-to-date

The same thing happens with "git pull", but not the other git commands I tried (in a far-from-exhaustive search).

It's trivial to work around (e.g., use /dev/null as stdin), but it would be more convenient if it just worked :-)

- Gustav