apply order of GtkTextTags

[Markus Lausser <sgop users sourceforge net>]

hi,

i've experienced the following behaviour of the GtkTextTags:
Tags don't override settings from other tags, that where applied sooner.
Is that wanted behaviour? Or am i doing something wrong?

I find it a little bit confusing, and i think its the common case that
one wants to set a basic tag and then a special tag for some parts.

Markus.