$ git clone -n https://src.fedoraproject.org/rpms/voro++.git /var/lib/mock/f42-build-3282689-41399/root/chroot_tmpdir/scmroot/voro++
Cloning into '/var/lib/mock/f42-build-3282689-41399/root/chroot_tmpdir/scmroot/voro++'...
$ git fetch origin 3124234ed2b386626a5913acfb817fa5a98c714a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/voro++
 * [new ref]         3124234ed2b386626a5913acfb817fa5a98c714a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3124234 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild