reset the model in BandboxSearch when the finder is set, in

order to update the model.

FEA: ItEr76S22ExpenseTrackingSystem

libreplan-webapp/src/main/java/org/libreplan/web/common/components/bandboxsearch/BandboxSearch.java

@@ -231,6 +231,7 @@ public class BandboxSearch extends HtmlMacroComponent {
 
     public void setFinder(String classname) {
         finder = (IBandboxFinder) getBean(StringUtils.uncapitalize(classname));
+        finder.resetModel();
     }
 
     public List<? extends BaseEntity> getModel() {

libreplan-webapp/src/main/java/org/libreplan/web/common/components/finders/BandboxFinder.java

@@ -84,4 +84,7 @@ public abstract class BandboxFinder implements IBandboxFinder {
         }
     };
 
+    public void resetModel() {
+        this.model = null;
+    }
 }

libreplan-webapp/src/main/java/org/libreplan/web/common/components/finders/IBandboxFinder.java

@@ -93,4 +93,9 @@ public interface IBandboxFinder {
      */
     String objectToString(Object obj);
 
+    /**
+     * Reset the model
+     */
+    void resetModel();
+
 }