$ git clone -n https://src.fedoraproject.org/rpms/ghc-optparse-applicative.git /var/lib/mock/f45-build-10608-419/root/chroot_tmpdir/scmroot/ghc-optparse-applicative
Cloning into '/var/lib/mock/f45-build-10608-419/root/chroot_tmpdir/scmroot/ghc-optparse-applicative'...
$ git fetch origin 058d3bc2529e7674270f0400e9b8b348c4467344:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-optparse-applicative
 * [new ref]         058d3bc2529e7674270f0400e9b8b348c4467344 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 058d3bc Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild