[MacPorts] #45910: okular @0.6.4 makes broken screen when scrolling

[MacPorts]

#45910: okular @0.6.4 makes broken screen when scrolling
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  Reporter:  lightoml@…  |      Owner:  nicos@…
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:
      Port:  okular      |
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Comment (by mk@…):

 Replying to [comment:17 xfacter@…]:
 > I'm also having this issue on Yosemite. It's a shame because Okular
 seems like the only real Mac alternative to Djview for reading DJVU files.
 I've found that there are actually more working DJVU viewers for iOS. Are
 there any ideas yet what the issue is?

 Can you verify that an external mouse "solves" the issue, as pointed out
 in comment:11?

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Ticket URL: <https://trac.macports.org/ticket/45910#comment:18>
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