[MacPorts] #69555: Use cloning to activate port images on APFS

[MacPorts]

#69555: Use cloning to activate port images on APFS
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  Reporter:  jmroot       |      Owner:  (none)
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  base         |    Version:
Resolution:               |   Keywords:
      Port:               |
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Comment (by jmroot):

 Replying to [comment:1 ryandesign]:
 > The activated location could span multiple volumes.

 We already behave suboptimally in that case, so no regression.

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Ticket URL: <https://trac.macports.org/ticket/69555#comment:2>
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