Moved exec statement.

cockatrice/src/dlg_add_set.cpp

@@ -29,8 +29,6 @@ DlgAddSet::DlgAddSet(QWidget *parent, bool success) : QDialog(parent) {
     parentLayout->addWidget(buttonBox);
 
     setLayout(parentLayout);
-
-    exec();
 }
 
 void DlgAddSet::closeDialog()

cockatrice/src/tab_deck_editor.cpp

@@ -907,6 +907,7 @@ void TabDeckEditor::actAddCustomSet()
     );
 
     DlgAddSet dlg(this, res);
+    dlg.exec();
 }
 
 void TabDeckEditor::actEditSets()