Description of problem:
The behavior of:
   swig -ocaml -co swig.mli
and also
   swig -ocaml -co swig.ml
has changed and seems broken.   It used to drop a copy of the swig.mli
into the current directory.  Now I get an error message and no file.

This breaks graphviz builds. 

Version-Release number of selected component (if applicable):
swig-1.3.38-1.fc11

How reproducible:
100%

Steps to Reproduce:
1. rm -f swig.ml*
2. swig -ocaml -co swig.mli
3.
  
Actual results:
"File 'swig.mli' already exists. Checkout aborted."


Expected results:
Copy of swig.mli dropped into the current directory.
(Similarly for swig.ml)

Additional info:
Reverting to swig-1.3.36-2.fc11 from koji provides a workaround.