Hi,
I'm using an ActiveRecord transaction in a Rails app,
with Rails 2.3.2, Windows (Vista), MySQL 5.0.
No exception is being raised in the transaction, but one of the
changes made during the transaction is reverted
as the transaction finishes, whilst the other changes are preserved.
(Using "puts ..." shows the values displayed in comments in the code
below.) The same reversion is consistently happening.
The code is like:

------------------------
def swap(other)

  self_number=self.number    #==1
  other_number=other.number  #==2

  ActiveRecordModel.transaction do

    version=Version.find_by_kind(self.kind)
    #version.ver_num==30

    self.number=other_number
    other.number=self_number
    self.save
    other.save

    version.ver_num+=1
    version.save

    #self.number==2
    #other.number==1
    #version.ver_num==31
  end

  #self.number==1    ***Reverted!
  #other.number==1
  #version.ver_num==31

end
------------------------

Also, I've tried reversing the order of work on self and other
in the transaction, but it's still just self.number that reverts. Any
ideas?
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