Indexing out of bounds for Palace of Fine Arts

Very rarely (but sometimes), we get an indexing out of bounds issue for (sift_front_end, palace-fine-arts-281, 25, jpg, wget, olsson-loader, 320, true)

[Benchmark (sift_front_end, palace-fine-arts-281, 25, jpg, wget, olsson-loader, 320, true)](https://github.com/borglab/gtsfm/runs/5233761405?check_suite_focus=true#logs)

This suggests some indexing is incorrect:
```python
[2022-02-17 15:37:07,505 INFO loader_base.py line 158 4819] Image 256 resized from (H,W)=(1296,1936) -> (320,478)
Traceback (most recent call last):
File "gtsfm/runner/run_scene_optimizer_olssonloader.py", line 41, in
runner.run()
File "/home/runner/work/gtsfm/gtsfm/gtsfm/runner/gtsfm_runner_base.py", line 106, in run
sfm_result = sfm_result_graph.compute()
File "/usr/share/miniconda3/envs/gtsfm-v1/lib/python3.8/site-packages/dask/base.py", line 290, in compute
(result,) = compute(self, traverse=False, **kwargs)
File "/usr/share/miniconda3/envs/gtsfm-v1/lib/python3.8/site-packages/dask/base.py", line 573, in compute
results = schedule(dsk, keys, **kwargs)
File "/usr/share/miniconda3/envs/gtsfm-v1/lib/python3.8/site-packages/distributed/client.py", line 2994, in get
results = self.gather(packed, asynchronous=asynchronous, direct=direct)
File "/usr/share/miniconda3/envs/gtsfm-v1/lib/python3.8/site-packages/distributed/client.py", line 2146, in gather
return self.sync(
File "/usr/share/miniconda3/envs/gtsfm-v1/lib/python3.8/site-packages/distributed/utils.py", line 309, in sync
return sync(
File "/usr/share/miniconda3/envs/gtsfm-v1/lib/python3.8/site-packages/distributed/utils.py", line 376, in sync
raise exc.with_traceback(tb)
File "/usr/share/miniconda3/envs/gtsfm-v1/lib/python3.8/site-packages/distributed/utils.py", line 349, in f
result = yield future
File "/usr/share/miniconda3/envs/gtsfm-v1/lib/python3.8/site-packages/tornado/gen.py", line 762, in run
value = future.result()
File "/usr/share/miniconda3/envs/gtsfm-v1/lib/python3.8/site-packages/distributed/client.py", line 2009, in _gather
raise exception.with_traceback(traceback)
File "/home/runner/work/gtsfm/gtsfm/gtsfm/frontend/verifier/ransac.py", line 100, in verify
uv_norm_i1[match_indices[:, 0]],
IndexError: index 1087 is out of bounds for axis 0 with size 1086
Error: Process completed with exit code 1.
```

Start with gtsfm/frontend/verifier/ransac.py at verify(), where match_indices indexes uv_norm_i1, then reproduce the Palace of Fine Arts benchmark from the linked run. Trace why match_indices can contain 1087 while uv_norm_i1 has size 1086. Done means the intermittent indexing error no longer occurs and the benchmark completes successfully.

Written by the indexing model from the issue text.