customize-save-variable: fails to update state?

[T.V. Raman]

If you have a defcustom  e.g.
(defcustom test-string "foo" ...)
and if within a function you do
(setq test-string "bar" )
(customize-save-variable 'test-string test-string)

the updated value gets written to the customization file
correctly.

However  if  you then invoke customize-variable test-string,
the customization buffer reflects the changed value, but not the
saved state -- state shows as "changed".

If you kill the customization buffer, reload the  .custom file,
and then invoke customize-variable, the state is reflected correctly.
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