$ git clone -n https://src.fedoraproject.org/rpms/libjwt.git /var/lib/mock/f45-build-16389-486/root/chroot_tmpdir/scmroot/libjwt
Cloning into '/var/lib/mock/f45-build-16389-486/root/chroot_tmpdir/scmroot/libjwt'...
$ git fetch origin fc197d5aeeea4631eb2c9d9f7da0ad3f65b02437:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libjwt
 * [new ref]         fc197d5aeeea4631eb2c9d9f7da0ad3f65b02437 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fc197d5 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild