Bug #6748 Record has changed since last read in table ... error on HEAP table

Description:
Hi,

On some cases, when reading a HEAP tables containing only one row, MySQL can report incorrectly "Record has changed since last read in table ..." error.

Thanks !
  Jocelyn

How to repeat:
CREATE TABLE `online1` (
  `pseudo` char(35) NOT NULL default '',
  `date` int(10) unsigned NOT NULL default '0',
  `cat` tinyint(4) unsigned NOT NULL default '0',
  `forum` tinyint(3) unsigned NOT NULL default '0',
  PRIMARY KEY  (`pseudo`),
  KEY `forum` (`forum`),
  KEY `date` TYPE BTREE (`date`)
) ENGINE=HEAP DEFAULT CHARSET=latin1 MAX_ROWS=10000;

INSERT INTO online1 VALUES ('massecot',1101106491,1,18),('altec',1101106492,10,1),('stitch+',1101106304,4,1),('Seb Corgan',1101106305,12,1),('beerfilou',1101106263,6,18),('flaker',1101106529,3,29),('joce8',5,1,1),('M4vrick',1101106418,5,8),('gabay008',1101106525,3,29),('VampirX',1101106291,4,1),('ZoomZip',1101106546,0,12),('rip666',1101106502,4,1),('CBP',1101106397,2,67),('guezpard',1101106496,4,1);

SELECT * FROM online1 ORDER BY date DESC;

DELETE FROM online1 WHERE date<1101106546;

SELECT COUNT(*) FROM online1 WHERE forum='1';

Thank you for your bug report. This issue has been committed to our
source repository of that product and will be incorporated into the
next release.

If necessary, you can access the source repository and build the latest
available version, including the bugfix, yourself. More information 
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    http://www.mysql.com/doc/en/Installing_source_tree.html

Additional info:

fixed in 4.1.8, thank you!