bug#17756: indentation after declaring+initializing two arrays

[Pietro Belotti]

Hello. I have a problem with Emacs (version: 23.4.1
(x86_64-pc-linux-gnu, GTK+ Version 2.24.10) of 2012-09-08 on trouble,
modified by Debian [2 times]). A declaration is incorrectly indented
when following one where two or more arrays are declared and
initialized. The function foo() below has "char c = 'a';"
over-indented, while the function bar() following it has the same
declaration correctly indented.

int foo () {

  int a [2] = {1,2},
    b [2] = {3,4};

    char c = 'a';
}

int bar () {

  int
    b [2] = {3,4};

  char c = 'a';
}

This also happens if a newline is placed between "int" and "a [2]",
but it does not happen if a and b are declared on the same line. Both
M-x indent-region and moving the cursor and hitting TAB result in
this. I could not find any related issue in the mailing list archive,
is this expected behaviour?

Thanks,
Pietro