Multiple \DeclareSortExclusion clear each other out

[simifilm]

Consider the following MWE:

\usepackage{filecontents}

\begin{filecontents}{\jobname.bib}
@article{Bli74,
  author = {Blinder, Alan S.},
  year = {1974},
  title = {The economics of brushing teeth},
  journaltitle = {Journal of Political Economy},
  volume = {82},
  number = {4},
  pages = {887--891}}
  @inbook{PsyG,
  keywords = {simmel}, hyphenation = {german},
  author = {Georg Simmel},
  title = {Zur Psychologie des Geldes},
    booktitle = {Aufsätze 1887 bis 1890. Über sociale Differenzierung. Die Probleme der Geschichtsphilosophie (1892)},
    editor = {Heinz-Jürgen Dahme},
    volume = {2},
      maintitle = {Georg Simmel Gesamtausgabe},
      maineditor = {Otthein Rammstedt},
  address = {Frankfurt am Main},
  publisher = {Suhrkamp},
  year = {1999},
  sortyear = {1889},
  edition = {2},
  origdate = {1889-05},
  pages = {49-65},
  shorthand = {PsyG}}  
@collection{Ackerman.Strickland:1981,
    Address = {Bloomington},
    Author = {Ackerman, Forrest J. and Strickland, A. W.},
    Title = {A Reference Guide to American Science Fiction Films},
    Volume = {1},
    Year = {1981}}
}
\end{filecontents}

\usepackage[utf8]{inputenc}
\usepackage[ngerman]{babel}
\usepackage[style=authoryear]{biblatex}
\ExecuteBibliographyOptions{backend=biber}
\usepackage{csquotes}

\addbibresource{\jobname.bib}
\usepackage{hyperref}

\DeclareSortExclusion{collection}{author,editor,sortname,translator}
\DeclareSortExclusion{collection}{maintitle}
\DeclareNosort{
\nosort{type_title}{\regexp{\AA\s+}}}

\begin{document}

\cite{PsyG,Bli74,Ackerman.Strickland:1981}

\printbibliography
\end{document}

If there is only one \DeclareSortExclusion (\DeclareSortExclusion{collection}{author,editor,sortname,translator}), is correctly sorted under "R". As soon as I add the second \DeclareSortExclusion which shouldn't have any effect, the entry is sorted under "A".

[josephwright]

How is this different to issue #2?

[simifilm]

It isn't. Problems with the web interface.