Bug 171440 editgroups shows system groups as usable for bugs even though they are not

2xr=justdave

webtools/bugzilla/editgroups.cgi

@@ -121,7 +121,7 @@ unless ($action) {
         print "<td>$desc</td>\n";
         print "<td>$regexp&nbsp</td>\n";
         print "<td align=center>";
-        print "X" if $isactive;
+        print "X" if (($isactive != 0) && ($isbuggroup != 0));
         print "&nbsp</td>\n";
         print "<td> &nbsp ";
         print (($isbuggroup == 0 ) ? "system" : "user");