Check_MK Werk 7071: Fixed missing form error highlighting for cascaded dropdown fields

ID: 7071 Title: Fixed missing form error highlighting for cascaded dropdown fields Component: Multisite Level: 1 Class: Bug fix Version: 1.6.0i1 Some dropdown fields were not highlighted in case there are input validation errors detected during form submit. This made it hard for the user to find the field that needs to be corrected.