[FIX] Field: no Change event after value help
[FIX] Field: no Change event after value help

If value help was used to choose a value and then, without leaving the focus, the value is changed by keybourd, no change event is triggered.

Change-Id: Ic6a760f63b4357fb67aadc20b24134f3d711547c
BCP: 2280144406

SAP/openui5,SAP/openui5,SAP/openui5,SAP/openui5