fix(preferences): avoid exception when parsing PreventInvitationsWhit…

…elist Fixes #5006
Alinto · Apr 17, 2020 · 824b383 · 824b383
1 parent 6446176
commit 824b383
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/UI/PreferencesUI/UIxJSONPreferences.m b/UI/PreferencesUI/UIxJSONPreferences.m
@@ -465,7 +465,7 @@ - (NSString *) jsonSettings
   // sorry about this engineering brain fart!
   v = [[settings objectForKey: @"Calendar"] objectForKey: @"PreventInvitationsWhitelist"];
 
-  if (v && [v isKindOfClass: [NSString class]])
+  if (v && [v isKindOfClass: [NSString class]] && [v length] > 0)
     {
       [[settings objectForKey: @"Calendar"] setObject: [v objectFromJSONString]
                                                forKey: @"PreventInvitationsWhitelist"];