astCommandFields guarded only the program word, then ran every argument
through wordText, which keeps literal/quoted parts and silently drops
CmdSubst/ParamExp. A dynamic ARGUMENT was therefore reconstructed lossily:
`git $(printf foo)rebase -i HEAD~1` runs as `git foorebase -i` (a
non-existent, non-interactive subcommand) but collapsed to `git rebase -i`
and was blocked -- a false positive on a command the user never wrote, and
new on this branch (the base correctly reports not-interactive).
Extend the literalness guard to every word in the call: if any word carries
an expansion, skip that AST command rather than classify a reconstruction
whose runtime value is unknowable. Skipping is the safe direction -- the
hand-written passes still run first, and a miss falls through to the normal
permission prompt instead of hard-blocking.
Genuine detection is unchanged: `git rebase -i HEAD~1` and the #473 bypass
cases still classify exactly as before.
KRATOS
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