$ git clone -n https://src.fedoraproject.org/rpms/3dprinter-udev-rules.git /var/lib/mock/f45-build-845-288/root/chroot_tmpdir/scmroot/3dprinter-udev-rules
Cloning into '/var/lib/mock/f45-build-845-288/root/chroot_tmpdir/scmroot/3dprinter-udev-rules'...
$ git fetch origin 7fd12abecb060ab67a759c7071394b48aa1ecb92:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/3dprinter-udev-rules
 * [new ref]         7fd12abecb060ab67a759c7071394b48aa1ecb92 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7fd12ab Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild