[INTERNAL] sap.m.Popover: avoid style recalculation when it is not necessary
[INTERNAL] sap.m.Popover: avoid style recalculation when it is not
necessary

Change-Id: Idd1749acae78ff601245ed4dbf445882f58d6957

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