You're describing the action of the "Automatically update" check box in the
Style dialog, which causes changes in the formatting of one paragraph in a
given style to be applied to the style itself, which is then propagated to
all paragraphs in that style.
What is under discussion here, however, is the "Automatically update
document styles" check box in the Templates and Add-ins dialog, which in
fact does force Word to reapply the (possibly changed) formatting of the
styles in the attached template (whether the original one or one newly
attached) to the corresponding paragraphs in the document. This is different
from pressing Ctrl+Q, which will reapply the style as defined in the
document itself. After the styles in the document have been updated by using
the check box, however, it is a good idea to clear the box and depend on the
style definitions in the document itself.
--
Suzanne S. Barnhill
Microsoft MVP (Word)
Words into Type
Fairhope, Alabama USA
http://word.mvps.org
It doesn't look backward to a changed template; rather, if you
manually change formatting in (say) a paragraph in Normal style, it
makes the same change in all paragraphs bearing that same style. And
since styles are often based on other styles, the change can ripple
throughout your document.