Displaying 1 as a coefficient in front of the x variable

[Misha Trub]

Hello, dear developers! I'm new to Sage and have a question.
I've embedded SageCell on my website (great stuff, thanks to everyone involved!)
I expand the sine in a Taylor series and the first term is preceded by 1, which is usually omitted in such cases.
Am I doing something wrong, is this some kind of oversight or is this a conscious decision by the developers?

[ekwa...@gmail.com]

I think it's a bug.