Images no longer center aligned after upgrading from 3.4.1 to 3.5.0

[javedbartlett]

I recently upgraded from 3.4.1 to 3.5.0 and the left side of all media has shifted right slightly. As a result of this, images are no longer center aligned

I can't seem to pinpoint how this would've happened. Any insight?

cc @jedrzejchalubek

As you can see, there's an invisible space in 3.5.0 that should be covered by the image. As a result of this it seems like everything has shifted right.