Problem concating bpchar and varchar in 7.1.3

I just noticed that you cannot concat a fixed char column and a varchar
column in 7.1.3. Has this been fixed in 7.2? (I can't check it here...)

test=# \d ADOXYZ
Table "adoxyz"
Attribute | Type | Modifier
-----------+-------------------+----------
id | integer |
firstname | character(24) |
lastname | character varying |
created | date |

test=# select firstname || lastname from ADOXYZ;
ERROR: Unable to identify an operator '||' for types 'bpchar' and 'varchar'
You will have to retype this query using an explicit cast