Citation label issues

[ramojus]

I've noticed two strange things with citation labels:

1. When there are more than three authors, only the letters of the first author are taken. E.g, if I set year value to 2002 and author value to A. Surname and B. Surname and C. Surname and D. Surname (in .bib format) I get Sur+02 as citation label.
   I think it would make more sense if it would generate the label as SSS+02 (by taking the first surname letter from the first three authors).
2. If the labels of two citations match, there is no way to distinguish between them. I've seen solutions where unique letter is added at the end: Sur02a, Sur02b.

[DerDrodt]

That depends entirely on your citation style. The style usually also sets how labels are disambiguated. What style are you using?

[ramojus]

Sorry, that was misleading. I'm trying to write a custom csl for typst bibliography and csl has builtin variable citation-label. This is what I'm talking about.

Looking into this https://github.com/typst/hayagriva/blob/main/src/csl/citation_label.rs, the first problem should be very easy to fix, but I'm not sure about the second one.