However, in my experience the header is totally different. There is an (i) icon in the upper left corner that shows the link when tapped, and the upper right corner shows the share icon and tapping it opens the share dialog. Note this changed for me recently (I used to get the link icon like the poster).
So Google is clearly testing different behavior, which probably led to the bug. In any case, I'd note the version I got that I think the (i) is much less clear than the link icon, and I'm sure the end result is people clicking through to the source site less often. Fuck Google and their aggressive attempts to hijack the web even more than they already have.