Sunburst graph stacked together on switch

[eliptus]

This is a re-open of #1598 with repro steps. I tried to provide these in the original bug, but it seems to have gone unnoticed.

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This seems easily reproducible with multiple operating currencies.

With the below file, you can observe this by going to Trial Balance and first viewing Income in Sunburst mode, then selecting Assets.

option "operating_currency" "USD"
option "operating_currency" "JPY"

2023-12-04 open Assets:Checking USD,JPY
2023-12-04 open Income:Salary USD,JPY
2023-12-04 open Expenses:Food USD,JPY

2023-12-04 * "Mixed Transaction"
  Assets:Checking   +10000 JPY
  Assets:Checking  +100.00 USD
  Income:Salary

2023-12-04 * "USD Transaction"
  Assets:Checking   -10.00 USD
  Expenses:Food

[yagebu]

Thanks for providing an example file to reproduce this, with it, this was an easy fix.