tag-thread works sporadically

[brd]

I've noticed that when tryting to tag a whole thread with the <esc>-t
combo, sometimes it will work and sometimes not.  I may have to do it a
few times before it works, but it's not the same number each time.  I
think I've noticed the same thing with body search <esc>-b, so maybe
it's a bigger problem with my setup.

TIA,
Brian
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The 21st century begins on January 1, 2001.