Using cascadeType.Merge duplicates my entity - spring

Question

I have an entity "Employee" and a #Embeddable class RecycleBin. Now whenever a user deletes anything in the system the the entity class record is duplicated. I know it is because of the cascadeType.Merge i added in the RecycleBin class but if I remove cascadeType.Merge then the system crashes on delete operation giving a server error of "save transient before flushing". I have been stuck in this since two days and i am new to spring. If someone could please help me.
This is my Employee class.
#Entity
public class Employee {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
#Version
private Long version;
private String fullName;
private String fatherName;
private String identityCardNo;
#Temporal(TemporalType.DATE)
private Date dateOfBirth;
private String placeOfBirth;
private String nationality;
private String email;
private String phoneNumber;
#Column(columnDefinition = "TEXT")
private String permanentResAddr;
#Column(columnDefinition = "TEXT")
private String presentResAddr;
#Enumerated(EnumType.STRING)
private MaritalStatus martialStatus;
#Enumerated(EnumType.STRING)
private Gender gender;
private String spouseName;
private String spouseOccupation;
private String spouseOrganization;
private String spouseDesignation;
private String numOfDependents;
private String languagesKnown;
private String salary;
private String bonus;
private String allowance;
private String stipend;
#ElementCollection(fetch = FetchType.EAGER)
#Column(name = "jobrole")
#Enumerated(EnumType.STRING)
private List<JobRole> jobRoles;
#Enumerated(EnumType.STRING)
private JobType jobType;
#ElementCollection(targetClass = Privilege.class, fetch = FetchType.LAZY)
#Column(name = "privilege")
#Enumerated(EnumType.STRING)
private List<Privilege> privileges;
// dep auto del
#OneToMany(mappedBy = "substituteTeacher")
private List<TimetableSubstitute> timetableSubstitutes;
// dep manul del
#OneToMany(mappedBy = "createdBy")
private List<SchemeOfWork> createdSchemeOfWorks;
// dep association del
#OneToMany(mappedBy = "createdBy")
private List<CommentBank> createdComments;
// dep manul del
#OneToMany(mappedBy = "teacher")
private List<BatchSubject> teacherSubjects;
// dep auto del
#ManyToMany(fetch = FetchType.LAZY)
#JoinTable(name = "employee_campus", joinColumns = { #JoinColumn(name = "employee", referencedColumnName = "id") }, inverseJoinColumns = { #JoinColumn(name = "branch", referencedColumnName = "id") })
private List<Campus> schoolCampuses;
// dep auto del
#OneToMany(mappedBy = "employee")
private List<CampusEmployeeAttendance> employeeBranchAttendanceList;
// dep auto del
#OneToMany(mappedBy = "employee")
private List<EmployeeAttendance> employeeDayAttendanceList;
// dep association del
#OneToMany(mappedBy = "createdByTeacher")
private List<ProfileForm> teacherCreateProfileForms;
// dep auto del
#ManyToMany(mappedBy = "employees")
private List<Announcement> announcements;
// dep auto del
#OneToMany(mappedBy = "employee")
private List<Notification> notification;
// dep auto del
#OneToOne
private UserLoginAccount employeeLoginAccount;
// dep manul del
#OneToMany(mappedBy = "batchTeacher")
private List<Batch> teacherBatches;
// dep manul del
#OneToOne(mappedBy = "schoolEmployee")
private Parent parent;
#ElementCollection(fetch = FetchType.LAZY)
#CollectionTable(name = "employee_qualifications", joinColumns = #JoinColumn(name = "emp", referencedColumnName = "id"))
private List<Qualification> qualifications;
#ElementCollection(fetch = FetchType.LAZY)
#CollectionTable(name = "employee_pre_employment", joinColumns = #JoinColumn(name = "emp", referencedColumnName = "id"))
private List<PreEmployment> preEmployments;
#ElementCollection(fetch = FetchType.LAZY)
#CollectionTable(name = "employee_memberships", joinColumns = #JoinColumn(name = "emp", referencedColumnName = "id"))
private List<EmpMembership> memberships;
#ElementCollection(fetch = FetchType.LAZY)
#CollectionTable(name = "employee_certificates", joinColumns = #JoinColumn(name = "emp", referencedColumnName = "id"))
private List<EmpCertificate> certificates;
#ElementCollection(fetch = FetchType.LAZY)
#CollectionTable(name = "employee_references", joinColumns = #JoinColumn(name = "emp", referencedColumnName = "id"))
private List<EmpReference> references;
// dep auto del
#OneToMany(mappedBy = "employee", fetch = FetchType.LAZY)
private List<FileLibrary> empImages;
#Embedded
private RecycleBin recycleBin;
And this is my RecycleBin class.
#Embeddable
public class RecycleBin {
#Temporal(TemporalType.TIMESTAMP)
private Date deleteDate;
#ManyToOne(cascade= CascadeType.MERGE)
private Employee deletedBy;
#Enumerated(EnumType.STRING)
private RecycleBinStatus recycleBinStatus;