In Mp, can't get_all_records, then get_record, then get_all _records again

[jbhopkins]

If you have a database and you get_all_records, then get_record, then get_all_records again, it crashes with a SIGSEGV (on my mac and on Trogdor). This consistently occurs. If you just do one of those (get_all_records then get_record or get_record then get_all_records) it's fine.

Minimal example:

#! /usr/bin/env mpscript

def main(mx_db, args):
    mx_db.get_all_records()
    mx_db.get_record('mtr1')
    mx_db.get_all_records()