folder-hook && push question

["Wilkinson, Alex" <alex.wilkinson@xxxxxxxxxxxxxxxxxxx>]

Howdy, 

I have recently added a default folder-hook of: 

        push '<collapse-all>'

This is the way I have it configured:

folder-hook . \
        set sort=threads ;\
        set index_format="%4C %Z %{%b %d} %-15.15F (%4c) %?M?%M> ?%s" ;\
        set  push '<collapse-all>'

If I use the aforementioned configuration I get the following behavior upon
exec()'ing mutt:

        Chdir to: imap://hostname.dsto.defence.gov.au/INBOX/ollapse-all>

This is not the desired behavior.

However if I create another instance of the line in my configuration:

folder-hook . push '<collapse-all>'

all works fine.

Can anyone give me some insight as to why this happening ? A bug ?

 - aW