Current package states and open issues to a package seem to be often unknown or ignored.
It happened twice to me that somebody pushed a breaking commit directly to the master and while figuring that out I came along some other PR which was kept back. The PR contained the same thing as the breaking commit and was kept back because it was known that it would break things… One time the PR was kept back for over 2 months when the commit was pushed.
I love to use NixOS unstable and report bugs, but I often find that people don’t seem to really know what’s going on with certain packages/issues and mis(sing )communication or duplicated work are not as rare as they maybe should be. I don’t want to say people have to know about things (Nixpkgs is too huge) but at least to me it seems that such package orientated information is harder to get than it should be.