$ git clone -n https://src.fedoraproject.org/rpms/perl-Date-Range.git /var/lib/mock/f45-build-22971-595/root/chroot_tmpdir/scmroot/perl-Date-Range
Cloning into '/var/lib/mock/f45-build-22971-595/root/chroot_tmpdir/scmroot/perl-Date-Range'...
$ git fetch origin 63804cc9936893cdcca25460a31d8a3f08d781f8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Date-Range
 * [new ref]         63804cc9936893cdcca25460a31d8a3f08d781f8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 63804cc Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild