The license field changed:
-License: LGPLv2+ with exceptions +License: LGPLv2 with exceptions
but this wasn't because of a change upstream, just we got the wrong license originally. Jerry James has been writing a tool to synch Fedora spec files with the opam (OCaml source distribution) files and that caught the discrepancy.
https://bugzilla.redhat.com/1911667 https://pagure.io/opam2rpm
Rich.