$ git clone -n https://src.fedoraproject.org/rpms/python-uvloop.git /var/lib/mock/f40-build-2232205-53326/root/chroot_tmpdir/scmroot/python-uvloop
Cloning into '/var/lib/mock/f40-build-2232205-53326/root/chroot_tmpdir/scmroot/python-uvloop'...
$ git fetch origin db5cacc32243386455017bdf28fecb235cb41545:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-uvloop
 * [new ref]         db5cacc32243386455017bdf28fecb235cb41545 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at db5cacc Use Cython 3 for building