$ git clone -n https://src.fedoraproject.org/rpms/libdigidocpp.git /var/lib/mock/f45-build-16047-481/root/chroot_tmpdir/scmroot/libdigidocpp
Cloning into '/var/lib/mock/f45-build-16047-481/root/chroot_tmpdir/scmroot/libdigidocpp'...
$ git fetch origin 5433c4e20104bbf60da2a581a2de3ddf670141fd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libdigidocpp
 * [new ref]         5433c4e20104bbf60da2a581a2de3ddf670141fd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5433c4e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild