$ git clone -n https://src.fedoraproject.org/rpms/grantleetheme.git /var/lib/mock/f40-build-763271-122453/root/chroot_tmpdir/scmroot/grantleetheme
Cloning into '/var/lib/mock/f40-build-763271-122453/root/chroot_tmpdir/scmroot/grantleetheme'...
$ git fetch origin 49e8fe67528857061774a52f332785cdd866450f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/grantleetheme
 * [new ref]         49e8fe67528857061774a52f332785cdd866450f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 49e8fe6 Initial import (fedora#2252748).