[MacPorts] #61515: Brew zsh hangs on $(...) command substitution in Big Sur 11.0.1

[MacPorts]

#61515: Brew zsh hangs on $(...) command substitution in Big Sur 11.0.1
-------------------------+----------------------
  Reporter:  joelburton  |      Owner:  larryv
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.6.4
Resolution:              |   Keywords:  bigsur
      Port:  zsh         |
-------------------------+----------------------
Changes (by ryandesign):

 * owner:  (none) => larryv
 * status:  new => assigned


Comment:

 If you see the same problem with zsh regardless whether zsh is installed
 with MacPorts or Homebrew, that suggests a bug in zsh that should be
 reported to the developers of zsh. You could also check whether you get
 the same problem with /usr/bin/zsh as provided by Apple, but even if you
 don't, that doesn't mean it's not a zsh bug; Apple probably modifies their
 zsh just as they modify all of the software they ship with macOS.

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Ticket URL: <https://trac.macports.org/ticket/61515#comment:1>
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