$ git clone -n https://src.fedoraproject.org/rpms/qdigidoc.git /var/lib/mock/f45-build-33906-674/root/chroot_tmpdir/scmroot/qdigidoc
Cloning into '/var/lib/mock/f45-build-33906-674/root/chroot_tmpdir/scmroot/qdigidoc'...
$ git fetch origin 0aaf7ce78fdea82fed9c05e3a235558dc9e6fce5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qdigidoc
 * [new ref]         0aaf7ce78fdea82fed9c05e3a235558dc9e6fce5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0aaf7ce Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild