Meld 0.8.3 is out, the ebuild has just to be version bumped, but the patch has to be altered as there is a bug in the new version. I attach the new patch Reproducible: Always Steps to Reproduce: 1. 2. 3.
Created attachment 15018 [details] meld-0.8.3-gentoo.diff
thanks for your patch. i've bumped the version in portage.