\di+ cannot show the same name indexes

create table t1(c1 int);
create temp table t2(c1 int);

create index idx1 on t1(c1);
\di+                      List of relations Schema | Name | Type  | Owner | Table |  Size  | Description 
--------+------+-------+-------+-------+--------+------------- public | idx1 | index | zhrt  | t1    | 128 kB | 
(1 row)

create index idx1 on t2(c1);
\di+                         List of relations   Schema    | Name | Type  | Owner | Table |  Size  | Description 
-------------+------+-------+-------+-------+--------+------------- pg_temp_298 | idx1 | index | zhrt  | t2    | 128 kB | 
(1 row)

Is it the expected bavior?