Duplicate unverified authors on the same paper

Could be due to metadata errors or multiple undisambiguated authors with the same name. Per #6807, these were originally raised as build errors, and are now warnings.

- [x] rui-seara/unverified in https://aclanthology.org/2005.jeptalnrecital-court.20 (done in fix author metadata PR 6895 )
- [ ] bing-liu/unverified in https://aclanthology.org/2020.coling-main.463 (twice on PDF, different affiliations)
- [ ] vaibhav-kumar/unverified in https://aclanthology.org/2020.nlposs-1.5 (twice on PDF, different email handle?)
- [ ] vaibhav-kumar/unverified in https://aclanthology.org/2020.tacl-1.32 (twice on PDF, different email handle?)
- [x] yuan-tao/unverified in https://aclanthology.org/2021.paclic-1.46 (metadata error, 6904 )
- [x] dalya-faraj/unverified in https://aclanthology.org/2021.wanlp-1.44 (metadata error, 6903 )
- [x] meng-xu/unverified in https://aclanthology.org/2023.ccl-3.27
- [ ] qi-zhang/unverified in https://aclanthology.org/2023.semeval-1.13 (twice on PDF?)
- [ ] kun-xu/unverified in https://aclanthology.org/2024.acl-long.696 (twice on PDF?)
- [ ] min-zhang/unverified in https://aclanthology.org/2024.emnlp-main.1131 (twice on PDF, different affiliations)
- [x] kiril-gashteovski/unverified in https://aclanthology.org/2024.tacl-1.18 (metadata error, 6902 )
- [ ] tao-zhang/unverified in https://aclanthology.org/2025.acl-long.1581 (twice on PDF, marked with different card symbols)
- [x] weijie-yang/unverified in https://aclanthology.org/2025.finnlp-2.18 (metadata error, 6901 )
- [x] maud-benard/unverified in https://aclanthology.org/2025.mtsummit-2.22 (metadata error, 6900 )
- [x] t-gergely/unverified in https://aclanthology.org/C80-1031 (done in on fix author metadata PR 6895 )
- [x] nelson-correa/unverified in https://aclanthology.org/C88-1026 (done in fix author metadata PR 6895 )
- [x] francesca-bonin/unverified in https://aclanthology.org/D19-3036 (done in fix author metadata PR 6895 )
- [x] asanee-kawtrakul/unverified in https://aclanthology.org/L08-1271 (done in fix author metadata PR 6895 )
- [x] yves-lussier/unverified in https://aclanthology.org/W14-4402 (metadata error, 6897 )
- [x] mikhail-gronas/unverified in https://aclanthology.org/W17-4203 (done in fix author metadata PR 6895 )

UPDATE: 3 more that my regex was missing

- [x] akiko-eriguchi/unverified in https://aclanthology.org/2023.wat-1 (front matter, likely metadata error, #6898 )
- [x] sane-yagi/unverified in https://aclanthology.org/2025.clrel-1 (front matter, likely metadata error, #6899 )
- [ ] bo-xu/unverified in https://aclanthology.org/C16-1216 (twice on PDF?)

@weissenh, maybe you could investigate?