$ git clone -n https://src.fedoraproject.org/rpms/kitinerary.git /var/lib/mock/f41-build-side-1-3068045-38739/root/chroot_tmpdir/scmroot/kitinerary
Cloning into '/var/lib/mock/f41-build-side-1-3068045-38739/root/chroot_tmpdir/scmroot/kitinerary'...
$ git fetch origin b07b346292ccac8ffe98980b45cb07557465a0ae:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kitinerary
 * [new ref]         b07b346292ccac8ffe98980b45cb07557465a0ae -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b07b346 Merge branch 'rawhide' into f41