$ git clone -n https://src.fedoraproject.org/rpms/m2vrequantiser.git /var/lib/mock/f45-build-17874-505/root/chroot_tmpdir/scmroot/m2vrequantiser
Cloning into '/var/lib/mock/f45-build-17874-505/root/chroot_tmpdir/scmroot/m2vrequantiser'...
$ git fetch origin a637952a6060c4b861df9c28a9ddbebaab7bf24e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/m2vrequantiser
 * [new ref]         a637952a6060c4b861df9c28a9ddbebaab7bf24e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a637952 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild