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[Garth Wells <777646@xxxxxxxxxxxxxxxxxx>]

** Changed in: dolfin
       Status: Confirmed => Fix Committed

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https://bugs.launchpad.net/bugs/777646

Title:
  Mesh::renumber_by_color() should return a new Mesh

Status in DOLFIN:
  Fix Committed

Bug description:
  A Mesh should be static, i.e. no re-numbering, etc because this will
  screw up cached data, like boundary maps, MeshFunctions, parallel
  data. The simplest design is that functions like
  Mesh::renumber_by_color() should return a new Mesh.