Missing space on /posts/<id>/timeline

Question

If you look at the timeline for a post, e.g. https://meta.stackexchange.com/posts/248289/timeline, you see stuff like this:

There is no space between "by" and the username "masegaloeh".

This isn't a CSS issue; the space is absent in the HTML.

Answer 1

Fix is rolling out with build rev 2015.2.10.3061 on meta and 2015.2.10.2281 on sites.