Multiple extendTraces calls causes axis data to mix

Axis data becomes mixed between graphs when using Plotly.extendTraces on more than one graph on a page.

You can find a reproducible example below:
https://jsfiddle.net/au7jgfkw/24/

Screenshot of the bug in question:

As you can see, the first graph works as in tended. However, the proceeding two graphs contain the axis data related to another graph. Running the three lines of extendTraces further mixes the data between the graphs.

I have also tried nesting subsequent extendTraces calls in a .then callback to ensure that each line is called synchronously. However, this yields the same result.

I have also created a post on Plotly.js forums regarding this bug 25 days ago, but it does not have any comments.

Inizia con l’esempio riproducibile disponibile all’indirizzo https://jsfiddle.net/au7jgfkw/24/ e analizza le tre chiamate a Plotly.extendTraces su grafici separati. Confronta i dati degli assi dopo ogni chiamata e verifica se annidare le chiamate in un callback di then cambia il risultato. Il lavoro è completato quando gli aggiornamenti ripetuti mantengono isolati i dati degli assi di ciascun grafico.