Add Free form expression for "Subject or adresses contain"
Evolution-3.40.4
As far as I know it is not possible with free form expressions, to search for "Subject or adresses contain", which is often quite useful. Most times I'm using powerful free form expressions but need to switch back to "Subject or adresses contain" only for this case.
There is h:headerName=value, but h:*=foo does not work. So either add the syntax to search for any header like h:*=foo or some new operator like as: for "adresses or subject".
Then please add all the free form expression syntax to the docs at https://help.gnome.org/users/evolution/stable/mail-filters-conditions.html.en because right now the reference documentation is still from 2014 in bugzilla only: https://bugzilla.gnome.org/show_bug.cgi?id=550796#c10