pipe-split + macro with tag-prefix: applies to only one message

[Steve S <elcorto@xxxxxxx>]

Hi

I have a macro with this signature:
    
    set pipe_split=yes
    macro index ,k '<tag-prefix><pipe-message>cat > $(tempfile) && echo "doing 
stuff..."<enter>'

If I tag some messages and hit `;,k`, the macro is applied to only one message.
What am I missing? Thanks.

steve