Fix the calculate feature in the test scenario.

The new dialogs can't show an input so when there's a request for input
the old dialog needs to be shown.

changelog

@@ -18,6 +18,7 @@ Version 1.5.7+svn:
      with a SLF
  * Miscellaneous and bug fixes:
    * Added the sunset feature to the new dialogs.
+   * Fix the calculate feature in the test scenario.
 
 Version 1.5.7:
  * Campaigns:

src/game_events.cpp

@@ -2877,7 +2877,7 @@ namespace {
 			if (side_for_show && !get_replay_source().is_skipping())
 			{
 				// We whether we can show the new dialog.
-				if(options.empty() && speaker != units->end()) {
+				if(options.empty() && !has_text_input && speaker != units->end()) {
 					// Get the portrait and if found proceed to use the new dialog.
 
 					const tportrait* portrait =