[MacPorts] #64028: Error: process_cmd failed: invalid command name "::registry::entry976"

[MacPorts]

#64028: Error: process_cmd failed: invalid command name "::registry::entry976"
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  Reporter:  ryandesign  |      Owner:  (none)
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  base        |    Version:  2.7.99
Resolution:              |   Keywords:
      Port:              |
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Comment (by jmroot):

 Try now, I think this was specific to using `-u`.

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Ticket URL: <https://trac.macports.org/ticket/64028#comment:7>
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