[Bug 49552] Steam client does not render pages

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=49552

--- Comment #3 from Zebediah Figura  ---
While a regression test would normally be useful, I suspect in this case it's
going to be a problem with ntdll hotpatching. That was in a kind of broken
state at wine-staging 5.12 and probably still is now.

As an aside, the linked instructions aren't particularly useful for staging.
There's better instructions on the staging wiki page itself; I'll add a link.