# BibLaTeX uses multiple authors in citation although the references have different years [duplicate]

I use BibLaTeX for managing citations. However, inline citations with three or more authors sometimes use more than one author, although these references have different years, and thus, can be distinguished.

I give you an MWE to make my issue clear:

\documentclass{report}
\usepackage{filecontents}
\usepackage[backend=biber,style=authoryear,mincitenames=1,maxcitenames=2,giveninits=true,uniquename=mininit]{biblatex}

\begin{filecontents}{mybib.bib}
@article{Test2018,
author = {Human, B and Person, P and Somebody, B},
journal = {Journal of Journals},
number = {1},
pages = {1--8},
title = {qwerty},
volume = {1},
year = {2018}
}
@article{Test2019,
author = {Human, B and Random, R and Person, P},
journal = {Journal of Papers},
number = {1},
pages = {1--8},
title = {asdasd},
volume = {1},
year = {2019}
}
@article{Two2019,
author  = {First, Stephan and Second, Robert},
journal = {Journal of Research},
number = {1},
pages = {3--5},
title = {A Title},
volume = {1},
year = {2019}
}

@article{Three2019,
author  = {Uno, Alpha and Second, Beta and Third, Gamma},
journal = {Journal of Stuff},
number = {1},
pages = {3--5},
title = {Another Title},
volume = {1},
year = {2019}
}
\end{filecontents}

\begin{document}

This is a text with \autocite{Test2018} and \autocite{Test2019}.

This is a two authors citation \autocite{Two2019}.

This is an unrelated citation with three authors \autocite{Three2019}.

\printbibliography
\end{document}


Expected output:

This is a text with (Human et al. 2018) and (Human et al. 2019).
This is a two authors citation (First and Second 2019).
This is an unrelated citation with three authors (Uno et al. 2019).


Actual output:

This is a text with (Human, Person, et al. 2018) and (Human, Random, et al. 2019).
This is a two authors citation (First and Second 2019).
This is an unrelated citation with three authors (Uno et al. 2019).


How can I configure BibLaTeX to give me the expected output? I tried several variants of uniquename etc. but with no success.

• Welcome to TeX.SX! Thanks for adding an MWE! Aug 21 '19 at 8:43
• There's a warning about conflicting options ... Aug 21 '19 at 9:27
• @JosephWright I updated the MWE, warning is gone but the issue remains
– Jan
Aug 21 '19 at 10:12
• Aug 21 '19 at 16:06
• Duplicate? tex.stackexchange.com/q/474511/35864 Aug 21 '19 at 16:07

I think I found the solution by trial-and-error by myself. The combination of uniquename=mininit and uniquelist=minyear does only show one author and et al. when the year is different, but does add a,b,c etc. when the authors and the year are identical.
\usepackage[backend=biber,style=authoryear,mincitenames=1,maxcitenames=2,giveninits=true,uniquename=mininit,uniquelist=minyear]{biblatex}