Fixing an issue that occurs when trying to restore wms layers from preferences.  An empty string test was preventing object params from being passed along.  I moved the empty string test alongside the test of string params.
Fixing an issue that occurs when trying to restore wms layers from preferences.  An empty string test was preventing object params from being passed along.  I moved the empty string test alongside the test of string params.

aconyteds/Esri-Ozone-Map-Widget,Esri/Esri-Ozone-Map-Widget,Esri/Esri-Ozone-Map-Widget,Esri/Esri-Ozone-Map-Widget,aconyteds/Esri-Ozone-Map-Widget,aconyteds/Esri-Ozone-Map-Widget,aconyteds/Esri-Ozone-Map-Widget