$ git clone -n https://src.fedoraproject.org/rpms/ghc-vty.git /var/lib/mock/f45-build-10954-425/root/chroot_tmpdir/scmroot/ghc-vty
Cloning into '/var/lib/mock/f45-build-10954-425/root/chroot_tmpdir/scmroot/ghc-vty'...
$ git fetch origin ac94254a93a866ebc23f44e580105efe42ced2c0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-vty
 * [new ref]         ac94254a93a866ebc23f44e580105efe42ced2c0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ac94254 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild