git fast-export problem with tags

Hi Johannes,

It seems in some cases the tag messages of annotated tags are not exported. Here is a reproducer:

git init echo a > file git add file git commit -m i git tag -a -m "one dot zero" 1.0

Now the output of 'git fast-export --all' does not contain the "one dot zero" message.

But if you go a bit futher and make master point to a commit different to the tag:

echo b > file git add file git commit -m b

then the output of 'git fast-export --all' clearly has it.

Is this a bug or have I missed something? ;-)

Thanks.