$ git clone -n https://src.fedoraproject.org/rpms/garmintools.git /var/lib/mock/f41-build-840253-160595/root/chroot_tmpdir/scmroot/garmintools
Cloning into '/var/lib/mock/f41-build-840253-160595/root/chroot_tmpdir/scmroot/garmintools'...
$ git fetch origin 86039ecb8a37a4d2ed51d750603246269a556a21:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/garmintools
 * [new ref]         86039ecb8a37a4d2ed51d750603246269a556a21 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 86039ec Fix FTBFS (rhbz#2300685)