/ clap Public
fix(parser): Only add ArgGroup to ArgMatches for command-line #4375
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This will fix
clap_derives behavior for optional-flattened groups as
it will properly detect when the group is present (#3566).
While I consider this a bug and not part of compatibility guarentees, I
still want to keep in mind user impact which could still prevent this.
Defaults will make the group always-present which has little value and
if anything is relying on this, it is probably an application bug.