$ git clone -n https://src.fedoraproject.org/rpms/tlfloat.git /var/lib/mock/f43-build-59030523-6570473/root/chroot_tmpdir/scmroot/tlfloat
Cloning into '/var/lib/mock/f43-build-59030523-6570473/root/chroot_tmpdir/scmroot/tlfloat'...
$ git fetch origin 376d5d384586902700427763e3b9f5b150d469f0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tlfloat
 * [new ref]         376d5d384586902700427763e3b9f5b150d469f0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 376d5d3 Fix accidental enablement of exhaustive tests