R devel - Mar 2009 - typo in sprintf format string segfaults R

typo as simple as %S instead of %s segfaults R devel:

*** R 2.9.0 (svn -r 47821) [/share/research/R-devel/20090203/lib64/R]
***
> sprintf("%S%d", "aaa", 1)
 *** caught segfault ***
address 0x8000, cause 'memory not mapped'

Traceback:
 1: sprintf("%S%d", "aaa", 1)

Possible actions:
1: abort (with core dump, if enabled)
2: normal R exit
3: exit R without saving workspace
4: exit R saving workspace

-------------------------------------------------------------
> sessionInfo()
R version 2.9.0 Under development (unstable) (2009-02-02 r47821) 
x86_64-unknown-linux-gnu 

locale:
C

attached base packages:
[1] stats     graphics  utils     datasets  grDevices methods   base


Dr Oleg Sklyar
Research Technologist
AHL / Man Investments Ltd
+44 (0)20 7144 3107
osklyar at maninvestments.com

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Sklyar, Oleg (London) wrote:
> typo as simple as %S instead of %s segfaults R devel:
>   
not exactly:

    sprintf('%S', 'aa')
    # error: unrecognised format at end of string

without a segfault.  but with another format specifier behind, it will
cause a segfault.

interestingly, here's again the same problem i have reported recently: 
that you are given a number of options for how to leave the session, but
you can type ^c and stay in a semi-working session.  (and the next
execution of the above will  then cause a segfault with immediate exit.)

vQ