Clarify that variable of a reinit is not considered a left-hand side

chapters/equations.tex

@@ -292,6 +292,7 @@ \subsubsection{Equations within When-Equations}\label{restrictions-on-equations-
   The \lstinline!for!- and \lstinline!if!-equations if the equations within the \lstinline!for!- and \lstinline!if!-equations satisfy these requirements.
 \item
   The different branches of \lstinline!when!/\lstinline!elsewhen! must have the same set of component references on the left-hand side.
+  Here, the destination variable of a \lstinline!reinit! (including when inside a \lstinline!when!-clause activated with \lstinline!initial()!) is not considered a left-hand side, and hence \lstinline!reinit! is unaffected by this requirement (as are \lstinline!assert! and \lstinline!terminate!).
 \item
   The branches of an \lstinline!if!-equation inside \lstinline!when!-equations must have the same set of component references on the left-hand side, unless all switching conditions of the \lstinline!if!-equation are parameter expressions.
 \end{itemize}