This bug covers 3 sub issues related to the chart component.

1. Adding new data to the dynamic chart globally affects the backend list of data. So if User A adds a new slice to the dynamic chart named "Test" with a value of 30.0, and User B later visits component showcase, he will see this added data, instead of a default "clean slate".

2. The currently selected chart is stored statically and between sessions. So if User A selects the Line Chart, then the default chart initially shown to User B (who later visits component showcase) will be Line Chart, instead of the true default of Bar Chart. This creates another issue if the last selected chart is pie2D or pie3D, as they will not be initialized properly for the next user, but will still be displayed.

3. For every additional user that views the pie2D or pie3D charts, the backend data will be reread into a static and global list. What this means is that over time the pie charts will continue to have more and more data added to them, until they are unreadable.