GDB transcript showing scm_to_utf8_string() misbehavior.

gistfile1.txt

Thread 1 hit Breakpoint 1, gnc_extension_name (extension=0x10e703c0)
    at C:/gcdev64/gnucash/unstable/src/gnucash-git/gnucash/gnome-utils/gnc-menu-extensions.c:117
117         initialize_getters();

Thread 1 hit Breakpoint 2, gnc_scm_call_1_to_string (func=0xeb137a0,
    arg=0x10e703c0)
    at C:/gcdev64/gnucash/unstable/src/gnucash-git/libgnucash/core-utils/gnc-guile-utils.c:141
141                 return gnc_scm_to_utf8_string(value);
$18 = (gchar *) 0xfba96e8 "Saldo (Sal▒rio)"
(gdb) s
gnc_scm_to_utf8_string (scm_string=0xedf3890)
    at C:/gcdev64/gnucash/unstable/src/gnucash-git/libgnucash/core-utils/gnc-guile-utils.c:41
41          if (scm_is_string (scm_string))
(gdb) n
46              str = scm_to_utf8_string(scm_string);
(gdb) p scm_to_utf8_stringn(scm_string, 0)
$19 = 0xfba8fb8 "Saldo (Salário)"
(gdb) p scm_to_utf8_string(scm_string)
$20 = 0xfba9128 "Saldo (Salário)"
(gdb) n
47              s = g_strdup(str);
(gdb) p str
$21 = 0xcc30f58 "Saldo (Sal▒rio)"
(gdb) p strlen($20)
$22 = 16
(gdb) x/17bx $20
0xfba9128:      0x53    0x61    0x6c    0x64    0x6f    0x20    0x28    0x53
0xfba9130:      0x61    0x6c    0xc3    0xa1    0x72    0x69    0x6f    0x29
0xfba9138:      0x00
(gdb) expr $foo = scm_to_utf8_string(scm_string)
Could not load libcc1.so: The specified module could not be found.

(gdb) call $foo = scm_to_utf8_string(scm_string)
$23 = 0xfba8e78 "Saldo (Salário)"
(gdb) p $foo
$24 = 0xfba8e78 "Saldo (Salário)"
(gdb) x/16bx $21
0xcc30f58:      0x53    0x61    0x6c    0x64    0x6f    0x20    0x28    0x53
0xcc30f60:      0x61    0x6c    0xe1    0x72    0x69    0x6f    0x29    0x00
(gdb)