[ET Trac] [Einstein Toolkit] #1026: add self assignment logic to classes with pointer members

[Einstein Toolkit]

#1026: add self assignment logic to classes with pointer members
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 Reporter:  rhaas        |       Owner:  eschnett
     Type:  enhancement  |      Status:  new     
 Priority:  minor        |   Milestone:          
Component:  Carpet       |     Version:          
 Keywords:               |  
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 this patch add the typical assign-to-self to Carpet's classes that contain
 pointer members. Ie. it exits early rather than deleting a pointer to data
 that is to be copied. Almost cosometical since it never triggered so far.

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/1026>
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