Problem with merge() (PR#1102)

I have encountered a problem with merge() that appears to be a bug.
Here's an example to illustrate it.

 tmp1 <- data.frame(a=letters[1:3],b=LETTERS[2:4],x=1:3)
 tmpa <- expand.grid(a=letters[1:4],b=LETTERS[1:4])
 tmpm.1 <- merge(tmpa,tmp1)
 tmpm.2 <- merge(tmp1,tmpa)

Error in "names<-.default"(*tmp*, value = vnames) :
         names attribute must be the same length as the vector


I'm using R 1.3.0, and it occurs on both the Macintosh and Solaris versions.

 version

_
platform powerpc-apple-darwin1.3.7
arch     powerpc
os       darwin1.3.7
system   powerpc, darwin1.3.7
status
major    1
minor    3.0
year     2001
month    06
day      22
language R

 version

_
platform sparc-sun-solaris2.7
arch     sparc
os       solaris2.7
system   sparc, solaris2.7
status
major    1
minor    3.0
year     2001
month    06
day      22
language R

(I've searched various places, including a list of fixes for v1.3.1, 
the faq, 2001 r-help archives, and haven't found anything about it)

Thanks
-Don

--------------------------------------
Don MacQueen
Environmental Protection Department
Lawrence Livermore National Laboratory
Livermore, CA, USA
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