graphing strangeness with stacking and series ordering

[Zach Wily]

I'm seeing some very strange behavior when creating stacked graphs. Depending on how I order the series, the graph will be rendered very, very different. This is the first graph, which appears to render correctly:

http://cl.ly/image/253J0h1i052T

However, if I simply swap the ordering of the targets, I get this:

http://cl.ly/image/3H213p1Z2u2R

Notice that the stacking on the right portion is really messed up, and there is a weird spike on the left around midnight. This might only be happening when one of the series doesn't have any data at the beginning of the graph, but I haven't confirmed that conclusively.

[Michael Leinartas (mleinartas)]

Migrated to Github: https://github.com/graphite-project/graphite-web/issues/239