LP:728930 - Aria double recovery failure "Found row where the auto_increment column has the value 0"

When executing "double" recovery via maria_read_log, maria_chk reports the following:

maria_chk: warning: Found row where the auto_increment column has the value 0

This was never seen before in straightforward recovery tests. "Double" recovery means that the initial run of maria_read_log is killed -9 partway through the procedure and a new run of maria_read_log is performed.

Please pull from lp:randgen before you run the test.

RQG command line:

perl runall.pl -grammar=conf/examples/example.yy --engine=Maria --basedir=/home/philips/bzr/maria-5.1 --duration=30 --reporter=AriaDoubleRecovery --mysqld=maria-checkpoint-interval=0 --mysqld=-safe-mode

in approximately 50% of the cases, maria_chk will report

maria_chk: warning: Found row where the auto_increment column has the value 0