&apt-email;
&apt-product;
<!-- The last update date -->
- <date>2012-06-09T00:00:00Z</date>
+ <date>2015-08-15T00:00:00Z</date>
</refentryinfo>
<refmeta>
</programlisting>
</listitem>
</itemizedlist>
+
+The effect of the comma operator is similar to an "and" in logic: All
+conditions must be satisfied for the pin to match. There is one exception:
+For any type of condition (such as two "a" conditions), only the last such
+condition is checked.
</para>
</refsect2>