[Z7 Beta] Reference pop-up shows index entry
                    Hi, 
in the newest Beta there seem to have been some changes and improvements with regard to the citation and footnote preview. However while reading this book (https://brill.com/display/title/33041), I've noticed something weird.
Some words in the text are underlayed with a light blue/gray background; hovering over them brings up the pop-up, but I don't know why. Apparently Zotero shows the index entry for the word in question, but that is of course not really helpful and rather confusing.
https://s3.amazonaws.com/zotero.org/images/forums/u5025031/90t7t8u3q7yiwtqjbr4t.png
                
                            in the newest Beta there seem to have been some changes and improvements with regard to the citation and footnote preview. However while reading this book (https://brill.com/display/title/33041), I've noticed something weird.
Some words in the text are underlayed with a light blue/gray background; hovering over them brings up the pop-up, but I don't know why. Apparently Zotero shows the index entry for the word in question, but that is of course not really helpful and rather confusing.
https://s3.amazonaws.com/zotero.org/images/forums/u5025031/90t7t8u3q7yiwtqjbr4t.png
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https://s3.amazonaws.com/zotero.org/images/forums/u5025031/flccse5jnk18sc3qmb50.png
https://s3.amazonaws.com/zotero.org/images/forums/u5025031/ujplkrdr1l6y1iqq6lwq.png
https://www.sciencedirect.com/science/article/pii/S147466701538188X?via=ihub
https://s3.amazonaws.com/zotero.org/images/forums/u7554954/f5gj7jp6oe9tmbv2h2pq.png
This is using version 7.0.0-beta.88+137a1ddcc (64-bit) on Linux.