When exporting to HTML, the exporter is supposed to check if there 
are additional constraints over a paragraph using 
`org-html-standalone-image-predicate'.  A misplaced quote causes 
`org-html-standalone-image-p' to not apply them.

To number captions on images the `org-html-paragraph' binds 
`org-html-standalone-image-predicate' to 
`org-html--has-caption-p', but since it gets ignored, 
`org-export-get-ordinal' considers all standalone images, not just 
captioned ones.  This throws off the numbering.