$ git clone -n https://src.fedoraproject.org/rpms/freerdp2.git /var/lib/mock/f45-build-9255-400/root/chroot_tmpdir/scmroot/freerdp2
Cloning into '/var/lib/mock/f45-build-9255-400/root/chroot_tmpdir/scmroot/freerdp2'...
$ git fetch origin 16e6d01e79140b34bf60bbd63ee8a9a64fd86e74:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/freerdp2
 * [new ref]         16e6d01e79140b34bf60bbd63ee8a9a64fd86e74 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 16e6d01 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild