Comparison feature in 3.12.0 and Email reports

Hello, in Matomo version 3.12.0 there is comparison feature ( which is great!

The only problem is, it doesnt work in email reports. When i generate email/pdf report i get this link: API&action=index&idSite=1&period=range&date=2020-04-01%2C2020-06-30&updated=2**&comparePeriods[]=range&compareDates[]=2019-04-01%2C2019-06-30** , but in report there is no comparison to slected dates. So i think this is a bug. Correct me if im wrong.

Thank you!