diff -Naur a/src/widgets/widgets/qcombobox.cpp b/src/widgets/widgets/qcombobox.cpp
--- a/src/widgets/widgets/qcombobox.cpp	2021-08-11 11:36:05.823389838 +0800
+++ b/src/widgets/widgets/qcombobox.cpp	2021-08-11 19:11:28.340478617 +0800
@@ -2208,10 +2208,9 @@
     Q_D(const QComboBox);
     if (d->lineEdit)
         return d->lineEdit->text();
-    else if (d->currentIndex.isValid())
+    if (d->currentIndex.isValid())
         return d->itemText(d->currentIndex);
-    else
-        return QString();
+    return {};
 }
 
 /*!