$ git clone -n https://src.fedoraproject.org/rpms/ghc-generics-sop.git /var/lib/mock/f45-build-10302-415/root/chroot_tmpdir/scmroot/ghc-generics-sop
Cloning into '/var/lib/mock/f45-build-10302-415/root/chroot_tmpdir/scmroot/ghc-generics-sop'...
$ git fetch origin c88bfb889efa2fa7f810a726bb1394dbfa2fc9af:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-generics-sop
 * [new ref]         c88bfb889efa2fa7f810a726bb1394dbfa2fc9af -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c88bfb8 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild