setting of reload interval in featurelistcombo

python/core/auto_generated/qgsfeaturefiltermodel.sip.in

@@ -145,6 +145,11 @@ Add a NULL entry to the list.
     void setAllowNull( bool allowNull );
 %Docstring
 Add a NULL entry to the list.
+%End
+
+    void setReloadTimerInterval( int interval );
+%Docstring
+Set the model reload timer interval in milliseconds
 %End
 
   signals:

src/core/qgsfeaturefiltermodel.cpp

@@ -549,3 +549,8 @@ void QgsFeatureFilterModel::setExtraIdentifierValue( const QVariant &extraIdenti
 
   emit extraIdentifierValueChanged();
 }
+
+void QgsFeatureFilterModel::setReloadTimerInterval( int interval )
+{
+  mReloadTimer.setInterval( interval );
+}

src/core/qgsfeaturefiltermodel.h

@@ -178,6 +178,11 @@ class CORE_EXPORT QgsFeatureFilterModel : public QAbstractItemModel
      */
     void setAllowNull( bool allowNull );
 
+    /**
+     * Set the model reload timer interval in milliseconds
+     */
+    void setReloadTimerInterval( int interval );
+
   signals:
 
     /**

src/gui/qgsfeaturelistcombobox.cpp

@@ -33,6 +33,7 @@ QgsFeatureListComboBox::QgsFeatureListComboBox( QWidget *parent )
   mCompleter->setFilterMode( Qt::MatchContains );
   setCompleter( mCompleter );
   mCompleter->setWidget( this );
+  mModel->setReloadTimerInterval( 1000 );
   connect( mModel, &QgsFeatureFilterModel::sourceLayerChanged, this, &QgsFeatureListComboBox::sourceLayerChanged );
   connect( mModel, &QgsFeatureFilterModel::displayExpressionChanged, this, &QgsFeatureListComboBox::displayExpressionChanged );
   connect( mModel, &QgsFeatureFilterModel::filterExpressionChanged, this, &QgsFeatureListComboBox::filterExpressionChanged );