$ git clone -n https://src.fedoraproject.org/rpms/python-tcxreader.git /var/lib/mock/f39-build-1924980-43025/root/chroot_tmpdir/scmroot/python-tcxreader
Cloning into '/var/lib/mock/f39-build-1924980-43025/root/chroot_tmpdir/scmroot/python-tcxreader'...
$ git fetch origin bb32e2e0ecbcfb8baa9ef8828764a51fc111e80b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-tcxreader
 * [new ref]         bb32e2e0ecbcfb8baa9ef8828764a51fc111e80b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bb32e2e Update to 0.4.6