$ git clone -n https://src.fedoraproject.org/rpms/python-click.git /var/lib/mock/f45-build-39466-735/root/chroot_tmpdir/scmroot/python-click
Cloning into '/var/lib/mock/f45-build-39466-735/root/chroot_tmpdir/scmroot/python-click'...
$ git fetch origin 531a08059a28964e8f2ebec4cbc0f9d7d2dbe73d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-click
 * [new ref]         531a08059a28964e8f2ebec4cbc0f9d7d2dbe73d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 531a080 Update to 8.4.2 (close RHBZ#2478232)