fix root group and attachment handling

internal/cmd/keepassxctemplatefuncs.go

@@ -5,7 +5,6 @@ import (
 	"bytes"
 	"errors"
 	"fmt"
-	"github.com/tobischo/gokeepasslib/v3"
 	"os"
 	"os/exec"
 	"regexp"
@@ -15,6 +14,7 @@ import (
 	"time"
 
 	"github.com/coreos/go-semver/semver"
+	"github.com/tobischo/gokeepasslib/v3"
 	"github.com/twpayne/go-expect"
 
 	"github.com/twpayne/chezmoi/v2/internal/chezmoi"
@@ -384,7 +384,7 @@ func (c *Config) keepassxcBuiltinExtractValues(
 		panic(err)
 	}
 
-	return keepassxcBuiltinBuildCache(db, "", db.Content.Root.Groups, nil, mapper)
+	return keepassxcBuiltinBuildCache(db, "", db.Content.Root.Groups[0].Groups, nil, mapper)
 }
 
 // keepassxcBuiltinBuildCache build the builtin cache using a given mapper function
@@ -428,7 +428,11 @@ func keepassxcBuiltinMapAttachmentCache(db *gokeepasslib.Database, entry gokeepa
 	for _, bin := range entry.Binaries {
 		b := db.FindBinary(bin.Value.ID)
 		if b != nil {
-			m[bin.Name] = string(b.Content)
+			str, err := b.GetContentString()
+			if err != nil {
+				panic(err)
+			}
+			m[bin.Name] = str
 		}
 	}
 	return m