Fix Overview Gramplet for HandleError

Fixes #11144

Author: prculley

Overview/Overview.gpr.py

@@ -27,7 +27,7 @@
          id="Person Overview",
          name=_("Person Overview"),
          description = _("Gramplet showing an overview of events for a person"),
-         version = '1.0.8',
+         version = '1.0.9',
          gramps_target_version="5.0",
          status = STABLE,
          fname="Overview.py",
@@ -41,7 +41,7 @@
          id="Family Overview",
          name=_("Family Overview"),
          description = _("Gramplet showing an overview of events for a family"),
-         version = '1.0.8',
+         version = '1.0.9',
          gramps_target_version="5.0",
          status = STABLE,
          fname="Overview.py",

Overview/Overview.py

@@ -144,7 +144,10 @@ def active_changed(self, handle):
 
     def update_has_data(self):
         active_handle = self.get_active('Person')
-        active = self.dbstate.db.get_person_from_handle(active_handle)
+        if active_handle:
+            active = self.dbstate.db.get_person_from_handle(active_handle)
+        else:
+            active = None
         self.set_has_data(self.get_has_data(active))
 
     def get_has_data(self, active_person):
@@ -198,7 +201,10 @@ def db_changed(self):
 
     def update_has_data(self):
         active_handle = self.get_active('Family')
-        active = self.dbstate.db.get_family_from_handle(active_handle)
+        if active_handle:
+            active = self.dbstate.db.get_family_from_handle(active_handle)
+        else:
+            active = None
         self.set_has_data(self.get_has_data(active))
 
     def get_has_data(self, active_family):