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I have been using biber/biblatex for a while now and I was used to define multiple citations with defbibentryset and the subentry option for biblatex. This worked nice but since the last update I have a problem with how references are ordered. For example if I define 3 \defbibenetryset they are numbered from 1 to 3 in the bibliography no matter if there are other single citations between them. In order to check this problem I compiled again an old file that worked, but it is not working any more:

\documentclass[a4paper, 10pt]{article} %environnement du document
\usepackage[T1]{fontenc} %prise en charge des caractères spéciaux
\usepackage[frenchb]{babel} %langue
\usepackage{csquotes} %pour la biblio
\usepackage[backend=biber,style=chem-acs,subentry,maxnames=20]{biblatex} %style acs

%pour réussir à faire des notes de bas de page



         {\BibliographyWarning{Ignoring prenote argument}}%
      {\BibliographyWarning{Ignoring postnote argument}}}






a\superfullcite{hov} \\
a\superfullcite{Grela2002} \\


the output should be ref1, ref2, ref3, ref4, ref5 in the bibliography, but it gives ref1, ref3, ref4, ref2, ref5. The set=hov is numbered 2!!!


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This could be a bug, I'm looking into it – PLK Jul 24 '12 at 8:51
It was a bug. Please update to the biber 1.1 development beta on SourceForge and try it again. – PLK Jul 24 '12 at 11:07
up vote 9 down vote accepted

I suppose this should be an answer ... this was a bug in biber 1.0 which should be fixed in 1.1 which is in beta on SourceForge.

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Is this possibly an issue with biber 2.2? I had to add an explicit \nocite{} in addition to the \defbibentryset{} recently to get the sorting working again. – mforbes Nov 3 '15 at 4:55

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