$ git clone -n https://src.fedoraproject.org/rpms/perl-Glib-IO.git /var/lib/mock/f45-build-23771-599/root/chroot_tmpdir/scmroot/perl-Glib-IO
Cloning into '/var/lib/mock/f45-build-23771-599/root/chroot_tmpdir/scmroot/perl-Glib-IO'...
$ git fetch origin 0c95ecbaa047011d38d89e41a7527d40ffea5ad9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Glib-IO
 * [new ref]         0c95ecbaa047011d38d89e41a7527d40ffea5ad9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0c95ecb Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild