$ git clone -n https://src.fedoraproject.org/rpms/ghc-microlens-mtl.git /var/lib/mock/f45-build-10524-418/root/chroot_tmpdir/scmroot/ghc-microlens-mtl
Cloning into '/var/lib/mock/f45-build-10524-418/root/chroot_tmpdir/scmroot/ghc-microlens-mtl'...
$ git fetch origin d6e96cf5cacd32745d89ed07795e9f3d1fd9aa7c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-microlens-mtl
 * [new ref]         d6e96cf5cacd32745d89ed07795e9f3d1fd9aa7c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d6e96cf Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild