CI_DB_result->next_row keeps returning last row, causing infinite loop

[svivian]

Working with a query result, the functions next_row and previous_row when called continually, never stop. When it gets to the end of the rows from the database, next_row just keeps returning the last row over and over.

It means some code like: while ( $row = $query->next_row() ) {} causes an infinite loop. (My code was a bit more complex, but it did essentially boil down to that.)

When there are no more results, shouldn't it return false or null ?