Merge remote-tracking branch 'origin/tqtc/lts-5.15.10' into tqtc/lts-5.15-opensourcev5.15.10-lts-lgpl

Change-Id: Ic1bb4240ca70a8a361fa0267476707446579221d

1 files changed, 8 insertions, 4 deletions

diff --git a/src/widgets/styles/qstylesheetstyle.cpp b/src/widgets/styles/qstylesheetstyle.cpp
index 9fcb8ba522..55d95c7fb2 100644
--- a/src/widgets/styles/qstylesheetstyle.cpp
+++ b/src/widgets/styles/qstylesheetstyle.cpp
@@ -2441,11 +2441,12 @@ static QWidget *embeddedWidget(QWidget *w)
 }
 
 /** \internal
-  in case w is an embedded widget, return the container widget
-  (i.e, the widget for which the rules actualy apply)
-  (exemple, if w is a lineedit embedded in a combobox, return the combobox)
+  Returns the widget whose style rules apply to \a w.
+
+  When \a w is an embedded widget, this is the container widget.
+  For example, if w is a line edit embedded in a combobox, this returns the combobox.
+  When \a w is not embedded, this function return \a w itself.
 
-  if w is not embedded, return w itself
 */
 static QWidget *containerWidget(const QWidget *w)
 {
@@ -2649,6 +2650,9 @@ void QStyleSheetStyle::setProperties(QWidget *w)
         default: v = decl.d->values.at(0).variant; break;
         }
 
+        if (propertyL1 == "styleSheet" && value == v)
+            continue;
+
         w->setProperty(propertyL1, v);
     }
 }