bug#59206: rmail-summary-apply-filters-consecutively causes wrong-type-argument error

[Richard Stallman]

[[[ To any NSA and FBI agents reading my email: please consider    ]]]
[[[ whether defending the US Constitution against all enemies,     ]]]
[[[ foreign or domestic, requires you to follow Snowden's example. ]]]

  > When the variable rmail-summary-apply-filters-consecutively is non-nil,
  > if you execute one of the rmail-summary-by-* commands when there is no
  > existing summary, you get an error.

In that kind of case, it ought to apply the newly specified filter to
the whole contents of the buffer, just as it always did in the past.

-- 
Dr Richard Stallman (https://stallman.org)
Chief GNUisance of the GNU Project (https://gnu.org)
Founder, Free Software Foundation (https://fsf.org)
Internet Hall-of-Famer (https://internethalloffame.org)