[INTERNAL][FIX] sap.m.FlexBox: Visibility updating when item is not active corrected
[INTERNAL][FIX] sap.m.FlexBox: Visibility updating when item is not active corrected

BCP: 1770448054
Change-Id: I92e72f90215ed8a0323b9b85c292f65a23094f76

SAP/openui5,cschuff/openui5,SQCLabs/openui5,SQCLabs/openui5,SAP/openui5,SAP/openui5,nzamani/openui5,SAP/openui5,nzamani/openui5,cschuff/openui5,cschuff/openui5,nzamani/openui5,SQCLabs/openui5