[MacPorts] #53322: port does not honor variants in variants.conf

[MacPorts]

#53322: port does not honor variants in variants.conf
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 Reporter:  mf2k    |      Owner:
     Type:  defect  |     Status:  new
 Priority:  Normal  |  Milestone:
Component:  base    |    Version:  2.3.99
 Keywords:          |       Port:
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 Using the latest base from git, port does not seem to honor the variants
 specified in my variants.conf file. You can see this when installing
 {{{wine-devel}}} from scratch. Even though I have {{{+python35}}} in my
 variants.conf, some ports will have the {{{python27}}} (the default for
 the ports) installed instead. I think the variants are getting cleared at
 some point in the install process.

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Ticket URL: <https://trac.macports.org/ticket/53322>
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