commands out of sync error w/ simple rollback if cursor is not cloed

the following program throws the above mentioned error:

import mariadb

conn = mariadb.connect(user="scott", password="tiger", db="test", host="localhost")

cursor = conn.cursor()

cursor.execute("select 1")

row = cursor.fetchone()

conn.rollback()

result:

$ python test3.py 

Traceback (most recent call last):

  File "test3.py", line 9, in <module>

    conn.rollback()

mariadb.InterfaceError: Commands out of sync; you can't run this command now

if the cursor is closed first, no error is raised.

using other DBAPI drivers such as mysqlclient, mysql-connector, and pymysql, no error is raised with the identical program, generally it's not standard behavior that rollback() fails if a cursor is open, and also if this were part of mariadb-connector's contract, it should raise an informative error that the cursor was not closed when it should have been.

I'm also getting segfaults in some similar cases however i dont have a reproducer for that right now.