[MacPorts] #60847: port install subport=xyz doesnt work as expected

[MacPorts]

#60847: port install subport=xyz doesnt work as expected
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  Reporter:  wadjei   |      Owner:  (none)
      Type:  defect   |     Status:  closed
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.6.2
Resolution:  invalid  |   Keywords:
      Port:           |
----------------------+--------------------
Changes (by ryandesign):

 * status:  new => closed
 * resolution:   => invalid


Comment:

 Replying to [comment:2 wadjei]:
 > So it was the dependency on the main package that was pulling in the
 update (still quite confusing)?

 You have the main ports tree containing mysql8 @8.0.21.

 You created a secondary ports tree containing mysql8 @8.0.19 and installed
 it. Any of mysql8's dependencies that weren't already installed or that
 were outdated were installed or upgraded via the main ports tree.

 You then tried to install mysql8-server @8.0.19 from your secondary ports
 tree. It depends on mysql8, and MacPorts tried to satisfy that dependency
 from the main ports tree, where it found mysql8 @8.0.21, so it tried to
 upgrade mysql8 first, which failed. `-n` tells MacPorts not to upgrade
 dependencies first.

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Ticket URL: <https://trac.macports.org/ticket/60847#comment:4>
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