$ git clone -n https://src.fedoraproject.org/rpms/nodejs-undici.git /var/lib/mock/f42-build-3419573-45162/root/chroot_tmpdir/scmroot/nodejs-undici
Cloning into '/var/lib/mock/f42-build-3419573-45162/root/chroot_tmpdir/scmroot/nodejs-undici'...
$ git fetch origin bcd92966d77afab91a7b08da4f33fdd9583ca5f3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nodejs-undici
 * [new ref]         bcd92966d77afab91a7b08da4f33fdd9583ca5f3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bcd9296 Update to version 7.4.0