Bug in new sit-for?

[Lennart Borgman]

Create a file sit-for-bug.el:

 (message "calling (sit-for 0)")(sit-for 0)
 (message "calling (sit-for 1)")(sit-for 1)
 (message "after sit-for")

Evaluate this inside Emacs with eval-buffer. Works fine. Now try instead

 emacs.exe -batch -Q -l sit-for-bug.el

This hangs after the displaying "calling (sit-for 1)". The first 
(sit-for 0) does not hang.

This is with Emacs from today on w32. Unfortunately this is a slightly 
patched version, will check with an unpatched version later.

Using Emacs from 2006-07-02 the batch call works fine.