$ git clone -n https://src.fedoraproject.org/rpms/python-uvloop.git /var/lib/mock/eln-build-side-110422-58958047-6569471/root/chroot_tmpdir/scmroot/python-uvloop
Cloning into '/var/lib/mock/eln-build-side-110422-58958047-6569471/root/chroot_tmpdir/scmroot/python-uvloop'...
$ git fetch origin 780a29b09efde92cb8d7b4085870f86d64b922d3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-uvloop
 * [new ref]         780a29b09efde92cb8d7b4085870f86d64b922d3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 780a29b Update to 0.21.0 (close RHBZ#2307494)