fix(combo): corrige chamada repetida no componente

Corrige chamada repetida no componente após clicar no botão de limpar e realizar uma nova busca

fixes DTHFUI-7500

Author: jcorrea97

projects/ui/src/lib/components/po-field/po-combo/po-combo-base.component.spec.ts

@@ -1438,25 +1438,28 @@ describe('PoComboBaseComponent:', () => {
 
     it('clear: should call `callModelChange` and `updateSelectedValue` and `updateComboList` and `initInputObservable`', () => {
       component.clean = true;
-
+      component.keyupSubscribe = of('').subscribe();
       spyOn(component, 'callModelChange');
       spyOn(component, 'updateSelectedValue');
       spyOn(component, 'updateComboList');
       spyOn(component, 'initInputObservable');
+      spyOn(component.keyupSubscribe, 'unsubscribe');
 
       component.clear('');
 
       expect(component.callModelChange).toHaveBeenCalled();
       expect(component.updateSelectedValue).toHaveBeenCalled();
       expect(component.updateComboList).toHaveBeenCalled();
       expect(component.initInputObservable).toHaveBeenCalled();
+      expect(component.keyupSubscribe['unsubscribe']).toHaveBeenCalled();
       expect(component.selectedValue).toEqual(undefined);
     });
 
     it('clear: should set hasNext to true if `infiniteScrool` is true', () => {
       component['defaultService'].hasNext = false;
       component.infiniteScroll = true;
       component.service = defaultService;
+      component.keyupSubscribe = of('').subscribe();
 
       component.clear('');
 

projects/ui/src/lib/components/po-field/po-combo/po-combo-base.component.ts

@@ -887,6 +887,9 @@ export abstract class PoComboBaseComponent implements ControlValueAccessor, OnIn
     this.updateComboList();
     this.initInputObservable();
     this.updateHasNext();
+    if (this.service || this.filterService) {
+      this.keyupSubscribe.unsubscribe();
+    }
   }
 
   protected configAfterSetFilterService(service: PoComboFilter | string) {