Merge branch 'dev' into 'master'

Release: Sprint/2022-03

See merge request !158

src/Database/Models/ResourceModel.cs

-using Coscine.Configuration;
+using Coscine.Configuration;
 using Coscine.Database.DataModel;
 using Coscine.Database.ReturnObjects;
 using Coscine.Database.Util;
@@ -333,6 +333,10 @@ namespace Coscine.Database.Models
             {
                 resource.LicenseId = resourceObject.License.Id;
             }
+            else
+            {
+                resource.LicenseId = null;
+            }
 
             // the application profile can not be altered after creation
             // resource.ApplicationProfile = resourceObject.ApplicationProfile;
@@ -565,4 +569,4 @@ namespace Coscine.Database.Models
             return compare == "rdss3" || compare == "rdss3ude" || compare == "rdss3nrw" || compare == "rdss3tudo";
         }
     }
-}
\ No newline at end of file
+}