AHC & WI: Accelerated Fall of Communism in Poland

With no PoDs prior to 1982 (so events of December 1981, including declaration of martial law, are as OTL), how can the PZPR fail to win (or "win") a majority in the following legislative elections (in 1985)? And how does this change things in Poland, in Eastern Europe, and in the wider world?
 
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