$ git clone -n https://src.fedoraproject.org/rpms/perl-Tie-Handle-Offset.git /var/lib/mock/f45-build-27225-621/root/chroot_tmpdir/scmroot/perl-Tie-Handle-Offset
Cloning into '/var/lib/mock/f45-build-27225-621/root/chroot_tmpdir/scmroot/perl-Tie-Handle-Offset'...
$ git fetch origin 856e29b3984240b29b353872de9a23de9657f8b7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Tie-Handle-Offset
 * [new ref]         856e29b3984240b29b353872de9a23de9657f8b7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 856e29b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild