haskellPackages.twain: unbreak by overriding http2 deeply

pkgs/development/haskell-modules/configuration-common.nix

@@ -319,7 +319,9 @@ self: super: {
   patat = super.patat.override { pandoc = self.pandoc_3_1_6_1; };
 
   # http2 also overridden in all-packages.nix for mailctl.
-  twain = super.twain.override { http2 = self.http2_3_0_3; };
+  # twain is currently only used by mailctl, so the .overrideScope shouldn't
+  # negatively affect any other packages, at least currently...
+  twain = super.twain.overrideScope (self: _: { http2 = self.http2_3_0_3; });
 
   # The latest release on hackage has an upper bound on containers which
   # breaks the build, though it works with the version of containers present

pkgs/development/haskell-modules/configuration-hackage2nix/broken.yaml

@@ -5585,7 +5585,6 @@ broken-packages:
   - turing-machines # failure in job https://hydra.nixos.org/build/233195604 at 2023-09-02
   - turing-music # failure in job https://hydra.nixos.org/build/233203435 at 2023-09-02
   - turtle-options # failure in job https://hydra.nixos.org/build/233255831 at 2023-09-02
-  - twain # failure in job https://hydra.nixos.org/build/234467075 at 2023-09-13
   - tweak # failure in job https://hydra.nixos.org/build/233211020 at 2023-09-02
   - twentefp-websockets # failure in job https://hydra.nixos.org/build/233207022 at 2023-09-02
   - twhs # failure in job https://hydra.nixos.org/build/233201182 at 2023-09-02

pkgs/development/haskell-modules/hackage-packages.nix

@@ -303041,8 +303041,6 @@ self: {
        testToolDepends = [ hspec-discover ];
        description = "Tiny web application framework for WAI";
        license = lib.licenses.bsd3;
-       hydraPlatforms = lib.platforms.none;
-       broken = true;
      }) {};
 
   "tweak" = callPackage