Quotes - Why does it autmoatically remove spaces?

[kiFF]

My problem is very simple. Let's say I type the following code:

[quote.]How are you?[/quote.]

I'm fine, thanks!

If I press "Preview", it automatically changes the code to this:

[quote.]How are you?[/quote.]I'm fine, thanks!

As you can see, it automatically puts the text on one line. This is annoying because some people like to add spaces to make it easier to read.

Why is it doing this? Thanks.