$ git clone -n https://src.fedoraproject.org/rpms/kmenuedit.git /var/lib/mock/f42-build-3419536-45162/root/chroot_tmpdir/scmroot/kmenuedit
Cloning into '/var/lib/mock/f42-build-3419536-45162/root/chroot_tmpdir/scmroot/kmenuedit'...
$ git fetch origin 3aa7e8996647b83a9f238c33637eec9a049d91d9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kmenuedit
 * [new ref]         3aa7e8996647b83a9f238c33637eec9a049d91d9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3aa7e89 fix BR to be aligned with cmake requires