Stacked Chards doesn't work if any modifiers applied

[phoniclynx]

Checklist

• [* ] I updated the card to the latest version available
• [ *] I cleared the cache of my browser
• [ *] I verified that I'm really running the lastest version in my browser console
• [* ] I checked if there is another issue opened with the same problem - reporting differently, but same, but different

Describe the bug Whenever you modify the graph and ask for stacking to be implemented it breaks the stacking of the graphs.

ie if you modify the yaxis command to remove the values on the side, or ask it to remove the values in the legend or apply a min or max value it fails to render the stack at all.

When producing a stacked graph the memory that is being used in Chrome and Firefox skyrockets so much that it often causes the tab to crash. Over 1.5GB up to 2.5GB per tab.

Version of the card Version:2.12

Makes it impossible to edit the page by the GUI editor as it simply hangs the page whilst it reloads, uses bup the memory and crashes.