$ git clone -n https://src.fedoraproject.org/rpms/kmenuedit.git /var/lib/mock/f41-build-824754-154216/root/chroot_tmpdir/scmroot/kmenuedit
Cloning into '/var/lib/mock/f41-build-824754-154216/root/chroot_tmpdir/scmroot/kmenuedit'...
$ git fetch origin 5af11dfa39bf09010d4e84eb4742073e9faba8ac:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kmenuedit
 * [new ref]         5af11dfa39bf09010d4e84eb4742073e9faba8ac -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5af11df rebuild