$ git clone -n https://src.fedoraproject.org/rpms/qcas.git /var/lib/mock/f45-build-33896-674/root/chroot_tmpdir/scmroot/qcas
Cloning into '/var/lib/mock/f45-build-33896-674/root/chroot_tmpdir/scmroot/qcas'...
$ git fetch origin 0f4eca1f33952bd05b91269c4231413bd664ab5a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qcas
 * [new ref]         0f4eca1f33952bd05b91269c4231413bd664ab5a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0f4eca1 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild