$ git clone -n https://src.fedoraproject.org/rpms/libtpcmisc.git /var/lib/mock/f45-build-17131-496/root/chroot_tmpdir/scmroot/libtpcmisc
Cloning into '/var/lib/mock/f45-build-17131-496/root/chroot_tmpdir/scmroot/libtpcmisc'...
$ git fetch origin 46908b72d2df5da56a989af1289e3fa19231e15d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libtpcmisc
 * [new ref]         46908b72d2df5da56a989af1289e3fa19231e15d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 46908b7 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild