What does it mean if doing WINEDEBUG=+relay fixes a bug?

[Misha Koshelev]

Hi, I am trying to debug bug #7484 but am having some problems as simply
doing a WINEDEBUG=+relay causes this bug to be fixed, thus making it
difficult for me to track it down (WINEDEBUG=+listview or WINEDEBUG=
+snoop do not have this effect of fixing it). If there is something that
the fact that this bug is fixed by +relay suggests, I would love to
know.

Thanks a lot
Misha