[MacPorts] #18408: Cannot upgrade mercurial (macports wants to reinstall latest dependencies)

[MacPorts]

#18408: Cannot upgrade mercurial (macports wants to reinstall latest dependencies)
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 Reporter:  apple@…               |       Owner:  deric@…           
     Type:  defect                |      Status:  new               
 Priority:  Normal                |   Milestone:  Port Bugs         
Component:  ports                 |     Version:  1.7.0             
 Keywords:                        |        Port:  mercurial         
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Comment(by ryandesign@…):

 Replying to [ticket:18408 apple@…]:
 > I have tried a number of ways to get the install to work beginning with
 'port upgrade mercurial', next 'port -n upgrade
 > mercurial', 'port -fn upgrade mercurial' and 'port -f upgrade mercurial'

 I do not completely understand all the symptoms you are describing, but
 you definitely do not want to run "port -f upgrade anything". The force
 flag should be used sparingly, and only when necessary, and using it
 without also using the "-n" flag will almost definitely cause things to
 rebuilt that do not need to be rebuilt.

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Ticket URL: <http://trac.macports.org/ticket/18408#comment:7>
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