$ git clone -n https://src.fedoraproject.org/rpms/perl-Barcode-Code128.git /var/lib/mock/f45-build-21877-588/root/chroot_tmpdir/scmroot/perl-Barcode-Code128
Cloning into '/var/lib/mock/f45-build-21877-588/root/chroot_tmpdir/scmroot/perl-Barcode-Code128'...
$ git fetch origin 7520e5ad8f180c3a993f5daf525699114d8621b2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Barcode-Code128
 * [new ref]         7520e5ad8f180c3a993f5daf525699114d8621b2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7520e5a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild