revert patch of guilty commit: https://gist.github.com/anonymous/5180682
This worked. Thank you.
]]>The issue is surely somewhere in here if anyone cares to comb the diff between 9.16 and 9.17.
]]>The problem doesn't exist after downgrading to rxvt-unicode 9.16.
]]>Hmm, I'll try the mailing list. Seems to be an isolated case.
]]>