* Submit selection to command on unmount of selection arg input
This fixes#7024 by saving the user's selection to the command even if
they click another argument in the command palette's header. It does no
harm to save the selection to the argument, even if it's being torn down
because the user dismissed it has no negative effect.
* Refactor to not auto-submit before selection is cleared on mount
Thanks E2E test suite
* Update failing E2E tests with new behavior, which allows skip with preselection
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Co-authored-by: Pierre Jacquier <pierrejacquier39@gmail.com>