Apparently there's some networking devilry going on with gmane at the moment, and this never got sent -- I'm trying again. Original message was:
Is anyone else seeing this? Go into a tags-type agenda, hit "/" to start filtering, then SPC for "filter to any tag". That gives me this backtrace: Debugger entered--Lisp error: (args-out-of-range "" 0 1) substring("" 0 1) (equal "{" (substring tag 0 1)) (and (equal "{" (substring tag 0 1)) (equal "}" (substring tag -1))) org-agenda-filter-make-matcher-tag-exp(("+") 43) Once ("+") is added to `org-agenda-tag-filter', all subsequent filtering actions will fail, until you remove all filters with "/ /". `org-agenda-filter-make-matcher-tag-exp' always removes the first character of the tag-matcher string, and then operates on what's left. In the case of "+", nothing's left! Thanks, Eric