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I'm migrating several pages into one which goes like this:

* move the contents of page "barpage" to a section of page "foopage":

<++> foopage
==barpage==
Old Barpage contents.
<-->

* Create a redirect page on barpage pointing to the section where the contents were just moved:

<++> barpage[0]
#REDIRECT [[foopage#barpage]]
<-->

I expect to be able to say, on barpage:

<++> barpage[1]
#REDIRECT [[foopage#{{PAGENAME}}]]
<-->

but PAGENAME does not expand for some reason.  If I do this instead:

<++> barpage[2]
{{PAGENAME}}
#REDIRECT [[foopage#{{PAGENAME}}]]
<-->

suddenly both PAGENAME templates expand properly.

I would expect barpage[1] to expand PAGENAME, just like barpage[2] does.