Berlin Wall fall turns violent

In this ATL, the Grenztruppen, surprised by the crowds massing to the Berlin Wall panics and shoots at the crowd, killing around fifty and wounding around 120. This then escalates when the East German government decides to overturn their earlier decision to let East Berliners move to the Western section and sends entire armored divisions that suppresses the demonstration in a brutality rivalling that of the Hungarian and Czechoslovakian riots

What would be the effect of this brutal aversion of the fall of the Berlin Wall?
 
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