$ git clone -n https://src.fedoraproject.org/rpms/ghc-sendfile.git /var/lib/mock/f45-build-10758-424/root/chroot_tmpdir/scmroot/ghc-sendfile
Cloning into '/var/lib/mock/f45-build-10758-424/root/chroot_tmpdir/scmroot/ghc-sendfile'...
$ git fetch origin 7253b849680a131ea90795ee8a3375fb2472f96f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-sendfile
 * [new ref]         7253b849680a131ea90795ee8a3375fb2472f96f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7253b84 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild