bugfix(input): No longer require two clicks to deselect worker after cancelling building placement in alternate mouse mode (#1453)

Author: Stubbjax

Generals/Code/GameEngine/Source/GameClient/MessageStream/SelectionXlat.cpp

@@ -962,6 +962,7 @@ GameMessageDisposition SelectionTranslator::translateGameMessage(const GameMessa
 					if (TheInGameUI->getPendingPlaceSourceObjectID() != INVALID_ID)
 					{
 						TheInGameUI->placeBuildAvailable(NULL, NULL);
+						TheInGameUI->setPreventLeftClickDeselectionInAlternateMouseModeForOneClick(FALSE);
 						disp = DESTROY_MESSAGE;
 						TheInGameUI->setScrolling(FALSE);
 					}

GeneralsMD/Code/GameEngine/Source/GameClient/MessageStream/SelectionXlat.cpp

@@ -1038,6 +1038,7 @@ GameMessageDisposition SelectionTranslator::translateGameMessage(const GameMessa
 					if (TheInGameUI->getPendingPlaceSourceObjectID() != INVALID_ID)
 					{
 						TheInGameUI->placeBuildAvailable(NULL, NULL);
+						TheInGameUI->setPreventLeftClickDeselectionInAlternateMouseModeForOneClick(FALSE);
 						disp = DESTROY_MESSAGE;
 						TheInGameUI->setScrolling(FALSE);
 					}