I think that would be good to add patch from mentioned bug to tree. Reproducible: Always
yes, patch should be applied to -r1
Problem is that the 1 or 2 (?) patches that are linked are very messy and it is unclear what the fix is, similar to the response from Debian.
someone else requested 4.88 for multiple other problems that have been fixed, let's hope the devs act fast here. https://lists.exim.org/lurker/message/20160819.071333.37230507.en.html
4.88 is on the way