[Vala] Strange Behaviour?

[Peter Cartwright <peter public use gmail com>]

Hello Vala-ites!

I'm working with the Mysql package and I'm stuck with something.

row1 = results.fetch_row ();
row2 = results.fetch_row ();

row1 and row2 are unique. No problem.

But..

fields1 = field_results.fetch_fields ();
fields2 = field_results.fetch_fields ();

fields1 seems to interfere with fields2. Are they pointing to the same
memory space?
Is this expected behaviour?

In the code example below (with output) you can see that a reference kept
to the first fetch_fields() (temp) get overwritten (garbled?) by subsequent
fetch_fields().

Code Example:
--------------------------------

var row = results.fetch_row ();
var table = row[0];
var field_results = _DB.db.list_fields (table);
var fields = field_results.fetch_fields ();
var temp = fields;
stdout.printf("1)\n");
stdout.printf(" %s\n", table);
stdout.printf(" %s\n", fields[0].name);
stdout.printf("temp: %s\n", temp[0].name);

row = results.fetch_row ();
table = row[0];
field_results = _DB.db.list_fields (table);
fields = field_results.fetch_fields ();
stdout.printf("2)\n");
stdout.printf(" %s\n", table);
stdout.printf(" %s\n", fields[0].name);
stdout.printf("temp: %s\n", temp[0].name);

row = results.fetch_row ();
table = row[0];
field_results = _DB.db.list_fields (table);
fields = field_results.fetch_fields ();
stdout.printf("3)\n");
stdout.printf(" %s\n", table);
stdout.printf(" %s\n", fields[0].name);
stdout.printf("temp: %s\n", temp[0].name);

row = results.fetch_row ();
table = row[0];
field_results = _DB.db.list_fields (table);
fields = field_results.fetch_fields ();
stdout.printf("4)\n");
stdout.printf(" %s\n", table);
stdout.printf(" %s\n", fields[0].name);
stdout.printf("temp: %s\n", temp[0].name);

row = results.fetch_row ();
table = row[0];
field_results = _DB.db.list_fields (table);
fields = field_results.fetch_fields ();
stdout.printf("5)\n");
stdout.printf(" %s\n", table);
stdout.printf(" %s\n", fields[0].name);
stdout.printf("temp: %s\n", temp[0].name);

Output:
---------------------------

1)
 AreaAccessAuthorisation
 idAreaAccess
temp: idAreaAccess
2)
 AreaClosedTimes
 idAreaClosedTimes
temp: idAreaAccess
3)
 AreaOpenAndClosedTimes
 idAreaOpenTimes
temp: idAreaOpenTimes
4)
 AreaOpenTimes
 idAreaOpenTimes
temp: idAreaOpenTimes
5)
 Areas
 idAreas
temp: 

cheers,
Peter