$ git clone -n https://src.fedoraproject.org/rpms/ghc-basic-prelude.git /var/lib/mock/f45-build-10013-412/root/chroot_tmpdir/scmroot/ghc-basic-prelude
Cloning into '/var/lib/mock/f45-build-10013-412/root/chroot_tmpdir/scmroot/ghc-basic-prelude'...
$ git fetch origin 046aa5b67490c35173be13397cf0caf3cd495356:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-basic-prelude
 * [new ref]         046aa5b67490c35173be13397cf0caf3cd495356 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 046aa5b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild