erp5_pdm: quick'n'dirty fix for commit below

26 jobs for for-mr-pig in 0 seconds
Status Job ID Name Coverage
  External
canceled ERP5.Master.UnitTest-Titouan.TestRunner.Pig

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failed ERP5.Master.UnitTest-Titouan.TestRunner.Pig

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failed ERP5.Master.UnitTest-Titouan.TestRunner.Pig

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failed ERP5.Master.UnitTest-Titouan.TestRunner.Pig

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failed ERP5.Master.UnitTest-Titouan.TestRunner.Pig

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failed ERP5.Master.UnitTest-Titouan.TestRunner.Pig

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failed ERP5.Master.UnitTest-Titouan.TestRunner.Pig

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