Internal Error in APPROX_PERCENTILE_CONT window function (SQLancer) #12058

DataFusion CLI v41.0.0
> create table t1(v1 int);
insert into t1 values (1),(2),(3),(4),(5);
0 row(s) fetched.
Elapsed 0.108 seconds.

+-------+
| count |
+-------+
| 5     |
+-------+
1 row(s) fetched.
Elapsed 0.049 seconds.

> SELECT
  APPROX_PERCENTILE_CONT(v1, 0.5) OVER (
    ROWS BETWEEN 4 PRECEDING AND CURRENT ROW
  )
FROM
  t1;
+-------------------------------------------------------------------------------------+
| approx_percentile_cont(t1.v1,Float64(0.5)) ROWS BETWEEN 4 PRECEDING AND CURRENT ROW |
+-------------------------------------------------------------------------------------+
| 1                                                                                   |
| 1                                                                                   |
| 2                                                                                   |
| 2                                                                                   |
| 3                                                                                   |
+-------------------------------------------------------------------------------------+
5 row(s) fetched.
Elapsed 0.040 seconds.

> insert into t1 values (6);
+-------+
| count |
+-------+
| 1     |
+-------+
1 row(s) fetched.
Elapsed 0.003 seconds.

> SELECT
  APPROX_PERCENTILE_CONT(v1, 0.5) OVER (
    ROWS BETWEEN 4 PRECEDING AND CURRENT ROW
  )
FROM
  t1;
Internal error: Retract should be implemented for aggregate functions when used with custom window frame queries.
This was likely caused by a bug in DataFusion's code and we would welcome that you file an bug report in our issue tracker