Counts need to be strings for histogram to work

A quirk I found today: count values need to be strings in order to be counted as numbers when inside a histogram.

fruits = c("Apples","Apples","Apples","Oranges", "Bananas")
counts = c(5,10,3,10,5)

Doesn't work:

plot_ly(y=counts, 
        x=fruits, 
        histfunc='sum', 
        type = "histogram") %>% 
  layout(yaxis=list(type='linear'))

Does work:

plot_ly(y=as.character(counts), 
        x=fruits, 
        histfunc='sum', 
        type = "histogram") %>% 
  layout(yaxis=list(type='linear'))

Comece reproduzindo os dois exemplos de histogramas plot_ly da issue, comparando counts numéricos com as.character(counts). Rastreie o tratamento de histogramas para histfunc='sum' e determine onde os counts numéricos são tratados de forma diferente. A tarefa estará concluída quando os counts numéricos produzirem o mesmo histograma esperado sem exigir a conversão para valores character.