Prevent mesh duplication after pygmsh optimization

[vaasuanandatheertha]

So, i mesh from

mesh = geometry.generate_mesh(dim = dimensionality, order = Mesh_Order, algorithm = Meshing_Algorithm)

and optimize using Omesh = pygmsh.optimize(mesh, method = "Laplace2D", verbose = False)

How do I precvent mesh duplication taking place here. See below for mesh informations:

mesh
Out[48]: 
<meshio mesh object>
  Number of points: 4357
  Number of cells:
    line: 1100
    triangle: 7768
    vertex: 36

pygmsh.optimize(mesh, method = "Laplace2D", verbose = True)

Out[49]: 
<meshio mesh object>
  Number of points: 8714
  Number of cells:
    line: 2200
    triangle: 15536
    vertex: 72

Plotting makes it more clear.