[O] [PATCH] tags search: faster tags matcher by trusting scanner tags

[Ilya Shlyakhter]

The attached patch speeds up tags matching ( 50s --> 5s for my most common search ),
by turning on org-trust-scanner-tags within the matcher.

(When it's off, getting a non-inherited property's value causes a call to org-entry-properties
to fetch all properties into a cache, including ALLTAGS; fetching ALLTAGS involves
calling (org-get-tags-at), which is slow when org-trust-scanner-tags is off.)

Can this cause problems / was this off for a reason?

thanks,

ilya

0022-Tags-matcher-turned-on-org-trust-scanner-tags-within.patch
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