gnucash: add patch to fix QIF import (#386397)

Author: drupol

pkgs/by-name/gn/gnucash/package.nix

@@ -86,6 +86,12 @@ stdenv.mkDerivation rec {
       url = "https://github.com/Gnucash/gnucash/commit/579eed1facc0f7834ea70b1a342ebca0f125d788.patch";
       hash = "sha256-XzRPHDPxt2TfeqO48vaNEcfF58neVDMxVqkPKrG5xoM=";
     })
+    # fixes QIF imports: https://bugs.gnucash.org/show_bug.cgi?id=799492
+    (fetchpatch {
+      name = "qif-import.patch";
+      url = "https://github.com/Gnucash/gnucash/commit/6531d3e46b7bee1add61aa6c6aaf8fb1f889a586.patch";
+      hash = "sha256-Lque2w9X9yencNVzI/DfuE3H2dN46yVNnbBdiEQE6/4=";
+    })
   ];
 
   # this needs to be an environment variable and not a cmake flag to suppress