#3279 Reset filters button enablement fix

plugins/org.jkiss.dbeaver.core/src/org/jkiss/dbeaver/ui/controls/resultset/ResultSetFilterPanel.java

@@ -324,7 +324,7 @@ class ResultSetFilterPanel extends Composite implements IContentProposalProvider
             String filterText = filtersText.getText();
             filtersText.setEnabled(supportsDataFilter);
             filtersApplyButton.setEnabled(supportsDataFilter);
-            filtersClearButton.setEnabled(viewer.getModel().getDataFilter().hasFilters());
+            filtersClearButton.setEnabled(viewer.getModel().getDataFilter().hasFilters() || !CommonUtils.isEmpty(filterText));
             filtersSaveButton.setEnabled(viewer.getDataContainer() instanceof DBSEntity);
             // Update history buttons
             if (historyPosition > 0) {

plugins/org.jkiss.dbeaver.core/src/org/jkiss/dbeaver/ui/controls/resultset/ResultSetViewer.java

@@ -364,7 +364,8 @@ public class ResultSetViewer extends Viewer
 
     public void setDataFilter(final DBDDataFilter dataFilter, boolean refreshData)
     {
-        if (!model.getDataFilter().equals(dataFilter)) {
+        //if (!model.getDataFilter().equals(dataFilter))
+        {
             //model.setDataFilter(dataFilter);
             if (refreshData) {
                 refreshWithFilter(dataFilter);