#16051: fast_callable can return ipow with exponents in the base ring
-----------------------+--------------------------
  Reporter:  bhutz     |             Type:  defect
    Status:  new       |         Priority:  minor
 Milestone:  sage-6.2  |        Component:  misc
Resolution:            |  Report Upstream:  N/A
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 fast_callable returns a string of operations. However, due to how caching
 of constants is done, the integer power function (ipow) can have constants
 in the base ring. This is because it checks the list of constants by
 comparing
 with == without taking into consideration the parent/type.

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Ticket URL: <http://trac.sagemath.org/ticket/16051>
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