one time in 20 error

[Ray Andrews <rayandrews@xxxxxxxxxxx>]

I have a function that uses zcurses that works fine about 19 times out 
of 20 but occasionally, on returning, it leaves something like this on 
the command line:

#zsh: permission denied: 1
#^[[<0;24;4m#
$ 0;24;4m

... the first number is always zero, the second is always two digits and 
the third one can be one or two digits.  The semi-colons and the 'm' 
never change.  Does anyone have the slightest clue what might be going 
on?  They look like color codes sorta.  When it happens seems completely 
random and it's frustratingly rare, so hard to even begin to diagnose.  
When it happens nothing seems amiss subsequently -- nothing seems to be 
broken.