$ git clone -n https://src.fedoraproject.org/rpms/python-itemloaders.git /var/lib/mock/f45-build-31159-650/root/chroot_tmpdir/scmroot/python-itemloaders
Cloning into '/var/lib/mock/f45-build-31159-650/root/chroot_tmpdir/scmroot/python-itemloaders'...
$ git fetch origin cad1c3d5ce9032625c1f0207d8c4a7b72d7ed5b1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-itemloaders
 * [new ref]         cad1c3d5ce9032625c1f0207d8c4a7b72d7ed5b1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cad1c3d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild