Webapp js - first element in the list does not load timeseries data

[earthgecko]

On the initial Panorama page load the Dygraph is
not populated with data because the data fetch is triggered by a mouseover on an
element. I believe the initial load "takes" th first elements place which
results in a mouseover on the first element not to not trigger the data fetch.

I stopped seeing this as a bug a long time ago as your brain quickly learns to
autocorrect this by first selecting any other metric in the list, which will
load the data and then selecting the first element in the list, which then does
load the data and the element is once again active.