[MacPorts] #71408: xmlcatmgr @2.2_1: Image error: /opt/local/bin/xmlcatmgr already exists and does not belong to a registered port.

[MacPorts]

#71408: xmlcatmgr @2.2_1: Image error: /opt/local/bin/xmlcatmgr already exists and
does not belong to a registered port.
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 Reporter:  thetrial           |      Owner:  (none)
     Type:  defect             |     Status:  new
 Priority:  Normal             |  Milestone:
Component:  ports              |    Version:  2.10.5
 Keywords:  legacy-os, sierra  |       Port:  xmlcatmgr, docbook-xml-4.2
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 {{{Image error: /opt/local/bin/xmlcatmgr already exists and does not
 belong to a registered port.  Unable to activate port xmlcatmgr. Use 'port
 -f activate}}}
 After I tried to force activation, my MacPorts database was corrupted, so
 I had to replay the whole /opt directory. I don’t understand, why this
 error occurs and question, if there is a bug.

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Ticket URL: <https://trac.macports.org/ticket/71408>
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