\index eats \par?

[David Antos]

        Hi all,

using \index at the end of a paragraph (like this one ;-) eats all \par-s
after that. Is this a bug or a feature? (In human words: the paragraphs become
joined together into one.)
\index{really don't know why}

It can be easilly overriden using \index{} before the end of the paragraph,
but I consider this quite unpleasant.

        Thanks

                                D.A.