Merge pull request #915 from hmenke/pause

doc: \pause can mess up tikzpictures

doc/beamerug-overlays.tex

@@ -59,7 +59,7 @@ \subsection{The Pause Commands}
 \end{verbatim}
 
 \begin{command}{\pause\oarg{number}}
-  This command causes the text following it to be shown only from the next slide on, or, if the optional \meta{number} is given, from the slide with the number \meta{number}. If the optional \meta{number} is given, the counter |beamerpauses| is set to this number. This command uses the |\onslide| command, internally. This command does \emph{not} work inside |amsmath| environments like |align|, since these do really wicked things.
+  This command causes the text following it to be shown only from the next slide on, or, if the optional \meta{number} is given, from the slide with the number \meta{number}. If the optional \meta{number} is given, the counter |beamerpauses| is set to this number. This command uses the |\onslide| command, internally. This command does \emph{not} work correctly inside |amsmath| environments like |align| and \pgfname\ environements like |tikzpicture|, since these do really wicked things.
 
   \example
 \begin{verbatim}