The fresh-install receipt is kept from before the consent answer and counted
after an opt-in, so "data from before you opt in stays on this machine" was
false for it on the CLI send explainer and Desktop's consentWindow line in all
9 locales; only the pre-chat offer named the exception. Both now carry the same
"apart from the fresh-install note (noted on this machine and counted only once
you opt in)" clause. No i18n key changes; the CLI lines stay under 80 columns.
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