$ git clone -n https://src.fedoraproject.org/rpms/postgresql16-pgvector.git /var/lib/mock/f42-build-side-1-3504271-45983/root/chroot_tmpdir/scmroot/postgresql16-pgvector
Cloning into '/var/lib/mock/f42-build-side-1-3504271-45983/root/chroot_tmpdir/scmroot/postgresql16-pgvector'...
$ git fetch origin 1cbd662a07f081963a03fcae5091d124507f0fef:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/postgresql16-pgvector
 * [new ref]         1cbd662a07f081963a03fcae5091d124507f0fef -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1cbd662 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild