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KNOWN BUGS IN ZSH
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The pattern %?* matches names beginning with %? instead of names with at
least two characters beginning with %. This is a hack to allow %?foo job
substitution without quoting. This behaviour is incompatible with sh
and ksh and may be removed in the future. A good fix would be to keep
such patterns unchanged if they do not match regardless of the state of
the nonomatch and nullglob options.
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It is currently impossible to time builtins.
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40106: The comp* completion-related builtins (compadd, compset, etc) are
run with $_comp_options in effect, rather than the user's options.
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40240: vcs_info: percent escapes in payloads are interpreted

Example: hg branch names and quilt patch subjects that contain the literal
string '%F{blue}', cause $vcs_info_msg_N_ to be rendered in blue.

40240 has a patch, but 40241 explains why that patch is incomplete.
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