Reproduction

Run dojo at https://dojo.telerik.com/@GaloisGirl/UtuZIyOd

Current behavior

All three notifications are removed after one second

Expected behavior

The blue notification should be removed after 2 seconds, the orange one after 1 second, the red one never.

Analysis

The bug only occurs with the appendTo option.

In the showStatic method, we clearly see all displayed notifications are iterated over and being attached the _hideStatic method. In my example:

1. the blue notification is shown and scheduled to be hidden after 2s
2. the red notification is shown, none is scheduler do be hidden, because autoHideAfter is 0
   
3. the orange notification is shown, and the blue one, the red one, and the orange one are scheduled to be hidden after 1s.
   

The 2018.1.117 code does not feature this loop and the bug is not present.