git archive: tar.umask ignored

Hello git@,

I believe git has an issue with command line override of configuration options. Notice how in both cases below the file mode is 775 despite tar.umask difference:

[jacekm@localhost git]$ ./git --version
git version 1.7.4.4
[jacekm@localhost git]$ ./git archive --remote=/repo/website.git HEAD
| tar -tvf - | head -1
drwxrwxr-x root/root         0 2011-04-11 13:47:09 bin/
[jacekm@localhost git]$ ./git -c tar.umask=0022 archive
--remote=/repo/website.git HEAD | tar -tvf - | head -1
drwxrwxr-x root/root         0 2011-04-11 13:47:09 bin/
[jacekm@localhost git]$

In contrast, tweaking tar.umask in ~/.gitconfig does have the desired impact on the file mode.

Jacek