fix: unstaged changes handling

See toolshed/organising#651

pkg/git/read_test.go

@@ -0,0 +1,15 @@
+package git
+
+import (
+	"errors"
+	"testing"
+
+	"github.com/go-git/go-git/v5"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestIsClean(t *testing.T) {
+	isClean, err := IsClean("/tmp")
+	assert.Equal(t, isClean, false)
+	assert.True(t, errors.Is(err, git.ErrRepositoryNotExists))
+}