[MacPorts] #68937: mercurial 6.6: Upgrade 6.6.1 to fix failure (aborted transactions)

[MacPorts]

#68937: mercurial 6.6: Upgrade 6.6.1 to fix failure (aborted transactions)
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 Reporter:  crapshoot  |      Owner:  (none)
     Type:  update     |     Status:  new
 Priority:  Normal     |  Milestone:
Component:  ports      |    Version:  2.8.1
 Keywords:  haspatch   |       Port:  mercurial
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 Please upgrade mercurial to 6.6.1.

 6.6 has known issues (which I immediately experienced) that are fixed in
 6.6.1. From their notes for Mercurial 6.6.1:

 The first two patches fix aborted transactions that could happen since
 6.6.

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Ticket URL: <https://trac.macports.org/ticket/68937>
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