#32 \FamilyCounterMacroKey with default results in error

[Markus Kohm]

There was a bug report in German via email. About:

In scrbase.sty macro \Family@@Counter@@Macro@@Key has been defined as

\newcommand*{\Family@@Counter@@Macro@@Key}{}
\def\Family@@Counter@@Macro@@Key#1#2#3[#4]#5{%
  \ifdefined#4\else\let#4\z@\fi
  \DefineFamilyKey[{#1}]{#2}{#3}[{#4}]{\FamilySetCounterMacro{#2}{#3}{#5}{##1}}%
}

But the macro is argument #5. So the \ifdefined… will fail (almost always). The definition has to be

\newcommand*{\Family@@Counter@@Macro@@Key}{}
\def\Family@@Counter@@Macro@@Key#1#2#3[#4]#5{%
  \ifdefined#5\else\let#5\z@\fi
  \DefineFamilyKey[{#1}]{#2}{#3}[{#4}]{\FamilySetCounterMacro{#2}{#3}{#5}{##1}}%
}

[Markus Kohm]

Fixed in [r3909] and [r3910].