BUG? git log -Sfoo --max-count=N

The documentation says

--max-count=<number> 
  Limit the number of commits output

but when used with -S as in

git log -Sfoo --max-count=N

it acts as "inspect only the N first commits", i.e. if `foo' is not
present on any of the first N commits no output is shown.

Using other filtering options (such as `--grep=' or `-- somepath')
together with --max-count=N will output at most N commits regardless of
the position on the history of those commits, as expected.

Tested with git 1.7.1 and 1.7.4.