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[Daniel Turcanu <danielturcanu@xxxxxxxxx>]

In the newly commited stack module

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https://bugs.launchpad.net/bugs/866423

Title:
  Deadlock in Updates

Status in Zorba - The XQuery Processor:
  Incomplete

Bug description:
  If some update expressions are executed in a certain order, Zorba ends
  up in a deadlock.

  Example Query:

  import module namespace coll = "http://www.zorba-xquery.com/zorba
  /collection-functions";

  declare sequential function local:test()
  {
    coll:create-collection("test", <a><b>Foo</b></a>);
    replace value of node collection("test")[1]/b with "Bar";
    coll:insert-nodes-at("test", 2, <a />);
    (); 
  };

  local:test();

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