$ git clone -n https://src.fedoraproject.org/rpms/python-chardet.git /var/lib/mock/f39-build-1537588-36381/root/chroot_tmpdir/scmroot/python-chardet
Cloning into '/var/lib/mock/f39-build-1537588-36381/root/chroot_tmpdir/scmroot/python-chardet'...
$ git fetch origin 01a67c2e9d3400bb28a4e928569b3546e2df2e18:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-chardet
 * [new ref]         01a67c2e9d3400bb28a4e928569b3546e2df2e18 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 01a67c2 Update to 5.2.0 (close RHBZ#2228250)