Merlin 4.12

Merlin 4.12 is a small patch release fixing regressions introduced in previous versions.

See full changelog
  • merlin binary
    • Fix issue with let operators and tuples (ocaml/merlin#1684, fixes ocaml/merlin#1683, fixes ocaml/ocaml-lsp#1182)
    • Fix an issue causing Merlin locate queries to hang (ocaml/merlin#1686, fixes ocaml/ocaml-lsp#1192)