$ git clone -n https://src.fedoraproject.org/rpms/rubygem-simplecov-html.git /var/lib/mock/f45-build-35316-694/root/chroot_tmpdir/scmroot/rubygem-simplecov-html
Cloning into '/var/lib/mock/f45-build-35316-694/root/chroot_tmpdir/scmroot/rubygem-simplecov-html'...
$ git fetch origin 3de3e05a4555a868a4c38d65ccfc1e8893e42214:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-simplecov-html
 * [new ref]         3de3e05a4555a868a4c38d65ccfc1e8893e42214 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3de3e05 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild