refactor(FE): Reset dependent fields when location or project flock

changes

src/components/pages/production/uniformity/form/UniformityForm.tsx

@@ -393,6 +393,77 @@ const UniformityForm = ({
     }
   }, [setFieldValue]);
 
+  // ===== RESET PROJECT FLOCK & KANDANG WHEN LOCATION CHANGES =====
+  const prevLocationIdRef = useRef<number | string>('');
+
+  useEffect(() => {
+    const currentLocationId = formik.values.location_id || '';
+
+    if (currentLocationId === prevLocationIdRef.current) {
+      return;
+    }
+
+    prevLocationIdRef.current = currentLocationId;
+
+    if (formik.values.project_flock !== null) {
+      setFieldTouched('project_flock', false);
+      setFieldValue('project_flock', null);
+    }
+    if (formik.values.project_flock_id !== 0) {
+      setFieldTouched('project_flock_id', false);
+      setFieldValue('project_flock_id', 0);
+    }
+
+    if (formik.values.kandang !== null) {
+      setFieldTouched('kandang', false);
+      setFieldValue('kandang', null);
+    }
+    if (formik.values.kandang_id !== 0) {
+      setFieldTouched('kandang_id', false);
+      setFieldValue('kandang_id', 0);
+    }
+
+    setSelectedProjectFlock(null);
+    setSelectedKandang(null);
+  }, [
+    formik.values.location_id,
+    formik.values.project_flock,
+    formik.values.project_flock_id,
+    formik.values.kandang,
+    formik.values.kandang_id,
+    setFieldTouched,
+    setFieldValue,
+  ]);
+
+  const prevProjectFlockIdRef = useRef<number | string>('');
+
+  useEffect(() => {
+    const currentProjectFlockId = formik.values.project_flock_id || '';
+
+    if (currentProjectFlockId === prevProjectFlockIdRef.current) {
+      return;
+    }
+
+    prevProjectFlockIdRef.current = currentProjectFlockId;
+
+    if (formik.values.kandang !== null) {
+      setFieldTouched('kandang', false);
+      setFieldValue('kandang', null);
+    }
+    if (formik.values.kandang_id !== 0) {
+      setFieldTouched('kandang_id', false);
+      setFieldValue('kandang_id', 0);
+    }
+
+    setSelectedKandang(null);
+  }, [
+    formik.values.project_flock_id,
+    formik.values.kandang,
+    formik.values.kandang_id,
+    setFieldTouched,
+    setFieldValue,
+  ]);
+
   const handleDownloadTemplate = useCallback(() => {
     const population = projectFlockKandangLookup?.population;