Missing all OLMo-3-1025-7B Stage 1 (pretraining) Olmo-core checkpoints

All 1415 stage 1 rows in src/scripts/official/OLMo3/OLMo-3-1025-7B.csv
(https://github.com/allenai/OLMo-core/blob/main/src/scripts/official/OLMo3/OLMo-3-1025-7B.csv) 404 while while every stage-2 (48) and stage-3 (12) checkpoint resolves fine. Tested with the script below

```bash
#!/usr/bin/env bash
# Shows that the stage1 (pretraining) Olmo-core checkpoints listed in
# OLMo-3-1025-7B.csv return 404, while stage2/stage3 return 200.
# Samples a few checkpoint dirs per stage and HEADs config.json in each.
CSV="https://github.com/allenai/OLMo-core/raw/refs/heads/main/src/scripts/official/OLMo3/OLMo-3-1025-7B.csv"
rows=$(curl -fsSL "$CSV")

for stage in stage1 stage2 stage3; do
echo "== $stage =="
# pick 6 dirs evenly spaced across this stage (endpoints included)
echo "$rows" | grep -oE "https://[^,]+/$stage/step[0-9]+/" \
| awk '{a[NR]=$0} END{n=NR; k=(n<6?n:6); for(i=0;i