This one is actually flagged as an error on en.WP:

[[Image:(1919) pic37 - Siameses in France.jpg|thumb|ALT=Old newspaper clipping of Asian soldiers|Siamese in France]]

The inconsistency is baffling. Maybe options with equals signs are correctly flagged as errors, while options without are ignored but not flagged?

This is still happening. There has been no action on this bug report in over a year, not even triage, apparently. Bogus File Options are listed as a "medium priority" Linter error, FWIW. Please let us volunteers know how we can help.

Sorry, all of last year, we were neck deep in porting Parsoid from JS to PHP and we had to necessarily ignore most of everything else. But, thanks for the ping here. I've tagged Parsoid on this so we can triage this and see if there is a quick fix (likely, but cannot confirm without looking more closely).

Thanks for the attention, and let me know if I can help with troubleshooting.

Note: also see T216003 and T215999 for other apparent Linter bugs related to bogus file options. There appear to be some underlying bugs with the way that image options are processed/interpreted.

I just wanted to make sure that all of the related bugs are mentioned in one place so that if a developer is looking at any of them, they can see all of them: T216566, T216003, T215999, T179605, T266406, T264464. If someone has a better way of making these bugs into a single project, please so do.