I'm seeing some odd behaviour when passing a submatch to substitute()
when evaluating a regexp in GVim 7.2. Say I have the following two-
line file:

the second line
appears below

If I place the cursor at the start of the file and execute the
following substitution:

:s/\v(the\s)(\_.*)/\=submatch(1) . submatch(2)

then it works correctly and I see:

the second line
appears below

However, if I instead execute the following substitution on the same
pattern:

s/\v(the\s)(\_.*)/\=substitute(submatch(1),'the','no','') . submatch
(2)

then I see only the following line:

no second line

In both of these examples, the second submatch spans both lines. But
in the second example, after calling substitute() with the first
match, the second match retains only the text that appears on the
first line. Is this a bug?

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