Properly implement session deep copy (#8602)

model/session.go

@@ -38,8 +38,21 @@ type Session struct {
 }
 
 func (me *Session) DeepCopy() *Session {
-	copy := *me
-	return &copy
+	copySession := *me
+
+	if me.Props != nil {
+		copySession.Props = CopyStringMap(me.Props)
+	}
+
+	if me.TeamMembers != nil {
+		copySession.TeamMembers = make([]*TeamMember, len(me.TeamMembers))
+		for index, tm := range me.TeamMembers {
+			copySession.TeamMembers[index] = new(TeamMember)
+			*copySession.TeamMembers[index] = *tm
+		}
+	}
+
+	return &copySession
 }
 
 func (me *Session) ToJson() string {

model/session_test.go

@@ -7,8 +7,38 @@ import (
 	"strings"
 	"testing"
 	"time"
+
+	"github.com/stretchr/testify/assert"
 )
 
+func TestSessionDeepCopy(t *testing.T) {
+	sessionId := NewId()
+	userId := NewId()
+	mapKey := "key"
+	mapValue := "val"
+
+	session := &Session{Id: sessionId, Props: map[string]string{mapKey: mapValue}, TeamMembers: []*TeamMember{&TeamMember{UserId: userId, TeamId: "someteamId"}}}
+
+	copySession := session.DeepCopy()
+	copySession.Id = "changed"
+	copySession.Props[mapKey] = "changed"
+	copySession.TeamMembers[0].UserId = "changed"
+
+	assert.Equal(t, sessionId, session.Id)
+	assert.Equal(t, mapValue, session.Props[mapKey])
+	assert.Equal(t, userId, session.TeamMembers[0].UserId)
+
+	session = &Session{Id: sessionId}
+	copySession = session.DeepCopy()
+
+	assert.Equal(t, sessionId, session.Id)
+
+	session = &Session{TeamMembers: []*TeamMember{}}
+	copySession = session.DeepCopy()
+
+	assert.Equal(t, 0, len(copySession.TeamMembers))
+}
+
 func TestSessionJson(t *testing.T) {
 	session := Session{}
 	session.PreSave()