erp5_web_renderjs_ui: fix multilist field notification when a value is dropped

21 jobs for master in 0 seconds
Status Job ID Name Coverage
  External
passed ERP5.CodingStyleTest-Master

01:00:46

failed ERP5.PerformanceTest-Master

00:38:06

failed ERP5.UnitTest-Master

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failed ERP5.UnitTest-Master.Medusa

01:41:37

passed SlapOS.Eggs.UnitTest-Master.Python2

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passed SlapOS.Eggs.UnitTest-Master.Python3

00:15:17

failed ERP5.PerformanceTest-Master

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failed ERP5.PerformanceTest-Master

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failed ERP5.PerformanceTest-Master

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failed ERP5.PerformanceTest-Master

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failed ERP5.PerformanceTest-Master

00:14:35

failed ERP5.PerformanceTest-Master

failed ERP5.PerformanceTest-Master

00:00:17

failed ERP5.PerformanceTest-Master

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failed ERP5.PerformanceTest-Master

00:00:13

failed ERP5.PerformanceTest-Master

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failed ERP5.PerformanceTest-Master

00:00:10

failed ERP5.PerformanceTest-Master

00:00:11

failed ERP5.UnitTest-Master

01:46:28

passed SlapOS.Eggs.UnitTest-Master.Python2

00:12:30

passed SlapOS.Eggs.UnitTest-Master.Python3

00:13:46