erp5_web_renderjs_ui: Declare form as modified when there is a invalid field

Status Job ID Name Coverage
  External
running ERP5.CodingStyleTest-Master

33356:24:15

passed ERP5.CodingStyleTest-TestRunner1

00:23:46

running ERP5.PerformanceTest-Master

33356:24:10

failed ERP5.PerformanceTest-TestRunner1

00:24:08

running ERP5.UnitTest-Master

33356:23:47

running ERP5.UnitTest-Master.Medusa

33356:23:39

failed ERP5.UnitTest-TestRunner1

01:33:02

running SlapOS.Eggs.UnitTest-Master.Python2

33356:24:08