history problems

[Vin Shelton <acs@xxxxxxxxxxxxxxxxxxxx>]

I've been off on vacation for a week and haven't yet had a chance to
catch up on my zsh email, so let me apologize in advance if this has
already been discussed.

With a current zsh built from CVS, I notice the following problem:

zsh -f
zion% ls

... output omitted ...

zion% history
    1  ls
zion% history -100
fc: bad history number: 0

It used to be that 'history -100' would return the same results as
'history' in this case.

I ran into this problem because .zlogout records my shell histories to
separate files upon logout.  The following command only works if at
least $HISTSIZE commands have been run:

fc -nldf -$HISTSIZE >> $outfile

This used to save up to $HISTSIZE commands, but now it generates:

fc: bad history number: 0

if fewer than $HISTSIZE commands have been executed in the shell

Thanks in advance,
  - vin