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 {