Multiple time series are added, and nothing works as expected.
It's not possible to edit and switch to time series if there's already a time series widget available
Chrome 59, 4.8.16

:+1:
I love this one. And also for the record: this is also happening with the pseudo time series in torque maps.
I haven't checked, but I think the edit workflow ignores a lot of the restrictions there are in place.
We should not allow the user to change a widget to a time-series type when there is already one selected.
That solution can be tricky from the user feedback point of view. How are we planning to inform users then?
Hiding the time-series icon would be simple, but I think it would cause confusion.
Since the widget edition has no 'confirm' action, we should probably disable the widget type button. Visually bring the opacity down or make the icon Black & White, or both. We should probably show a tooltip too.
I agree with @rjimenezda, we should turn it into a disable state + a tooltip.
@urbanphes, @josecruz fancy taking a quick look?
I agreed with this kind of solutions:
If we have a TimeSeries widget added we can remove the option on the carrousel for change by TimeSeries. This way we avoid this kind of problem that somebody can change a histogram widget by TimeSeries.
Let's go for it then
If you have time, please @Jesus89, take care of this.
I have also these ones:
Enter (You can delete it with Enter)
I think we should show a message if there is already a TimeSeries when a new TimeSeries is created. Something like: "Your current TimeSeries has been replaced" ?
cc @urbanphes @josecruz
Also found:
Enter key refreshes the view (init, render, render) until it is focused. I think this is a bugHey @Jesus89 nice catch!
Due we're not showing those "yes/no" warnings (that would require an extra screen) I'd keep it simple by showing on the infobox something like this:

Now it shows: "Widget succesfully added". Should the new message replace this one @josecruz?
May be a better message would be: "Widget succesfully replaced" ?
Hey guys, didn't we agreed that when one time series is active there is no way for adding / replacing it? That is why we want to remove the TS option from the carrousel in such situation, right?
@Jesus89 nice catches! please report them on different tickets.
Ok! I will create new tickets for the text replacement in the notification and the overflow bug :+1:
I have already implement the Enter fix :P
Why do we need a replacement text for?
@noguerol this is the new issue: https://github.com/CartoDB/cartodb/issues/12653
Closed by #12654.