$ git clone -n https://src.fedoraproject.org/rpms/mdns-scan.git /var/lib/mock/f45-build-18191-511/root/chroot_tmpdir/scmroot/mdns-scan
Cloning into '/var/lib/mock/f45-build-18191-511/root/chroot_tmpdir/scmroot/mdns-scan'...
$ git fetch origin 28e06c7752f5d3b4a4a87d5e86ed1d76d5eb2b10:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mdns-scan
 * [new ref]         28e06c7752f5d3b4a4a87d5e86ed1d76d5eb2b10 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 28e06c7 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild