[MacPorts] #67797: virt-manager @4.1.0_1+quartz: fails on start with +[NSPlaceholderMutableString initialize] may have been in progress in another thread when fork() was called.

[MacPorts]

#67797: virt-manager @4.1.0_1+quartz: fails on start with
+[NSPlaceholderMutableString initialize] may have been in progress in
another thread when fork() was called.
---------------------------+--------------------
  Reporter:  fabianwenk    |      Owner:  (none)
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:
Resolution:                |   Keywords:
      Port:  virt-manager  |
---------------------------+--------------------

Comment (by mohd-akram):

 I see this behavior too. It seems this issue does not occur when you
 launch "Virtual Machine Manager" from Launchpad. Looking at
 `/Applications/MacPorts/Virtual Machine Manager.app/Contents/MacOS/Virtual
 Machine Manager`, it runs `virt-manager --no-fork` and I can confirm this
 bypasses the issue. I'll look into this more to try to find what the root
 issue is.

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Ticket URL: <https://trac.macports.org/ticket/67797#comment:3>
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