Skip EWS items where there is no registered handler
Prevents nullptr dereference when handling an unexpected item type EwsItemTypeItem, such as can be found in "MeContact" on outlook.com. BUG: 440831
Prevents nullptr dereference when handling an unexpected item type EwsItemTypeItem, such as can be found in "MeContact" on outlook.com. BUG: 440831
mentioned in commit 20f00133