Close fd before notifiying buffer of modification when writing to file

src/file.cc

@@ -194,6 +194,7 @@ void write_buffer_to_file(Buffer& buffer, StringView filename)
 {
     buffer.run_hook_in_own_context("BufWritePre", buffer.name());
 
+    {
         int fd = open(parse_filename(filename).c_str(),
                       O_CREAT | O_WRONLY | O_TRUNC, 0644);
         if (fd == -1)
@@ -201,6 +202,7 @@ void write_buffer_to_file(Buffer& buffer, StringView filename)
         auto close_fd = on_scope_end([fd]{ close(fd); });
 
         write_buffer_to_fd(buffer, fd);
+    }
 
     if ((buffer.flags() & Buffer::Flags::File) and
         real_path(filename) == real_path(buffer.name()))