fix(parser): Track the most explicit value source #3334
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We were only tracking the last value source (default, env, cli, etc). This works for args because they only come from one source. Groups however can come from multiple sources and this was making us treat a group with a default value as being completely from defaults despite some values maybe being from the commandline. We now track the highest precedence value for a group. Fixes clap-rs#3330
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We were only tracking the last value source (default, env, cli, etc).
This works for args because they only come from one source. Groups
however can come from multiple sources and this was making us treat a
group with a default value as being completely from defaults despite
some values maybe being from the commandline.
We now track the highest precedence value for a group.
Fixes #3330