Describe the bug

Given a message like {input, plural, other {# + #}}, one would expect both # placeholders getting replaced by the plural value. But only the first one is actually replaced.

To Reproduce

import { plural } from "@lingui/macro"

export default function App() {
  const message = plural(5, {
    other: '# + #
  })
  return <p>{message}</p>
}

#445 introduced a placeholder for fractional seconds. It should be improved by:

• Enforce range limits on the values
• Fully support in pattern formatting
• Add to MockDateTime FromStr
• Add to day period resolution logic (unicode-org/icu4x#445 (comment))

Gives error on install. Seems to be related to the title and this thread:

zaach/jsonlint#103