fix(alerts): route composite alert clone through the dedicated /clone… (#14351)

web/src/components/alerts/AlertList.vue

@@ -802,24 +802,26 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
             v-model="toBeCloneAlertName"
             :label="t('alerts.alertName')"
           />
-          <OSelect
-            data-test="to-be-clone-stream-type"
-            v-model="toBeClonestreamType"
-            :label="t('alerts.streamType')"
-            :options="streamTypes"
-            @update:model-value="updateStreams()"
-            class="mt-1"
-          />
-          <OSelect
-            data-test="to-be-clone-stream-name"
-            v-model="toBeClonestreamName"
-            :disabled="!toBeClonestreamType"
-            :label="t('alerts.stream_name')"
-            :options="indexOptions"
-            searchable
-            @update:model-value="updateStreamName"
-            class="mt-1 mb-2"
-          />
+          <template v-if="!toBeClonedIsComposite">
+            <OSelect
+              data-test="to-be-clone-stream-type"
+              v-model="toBeClonestreamType"
+              :label="t('alerts.streamType')"
+              :options="streamTypes"
+              @update:model-value="updateStreams()"
+              class="mt-1"
+            />
+            <OSelect
+              data-test="to-be-clone-stream-name"
+              v-model="toBeClonestreamName"
+              :disabled="!toBeClonestreamType"
+              :label="t('alerts.stream_name')"
+              :options="indexOptions"
+              searchable
+              @update:model-value="updateStreamName"
+              class="mt-1 mb-2"
+            />
+          </template>
           <div class="mb-4">
             <SelectFolderDropDown
               :type="'alerts'"
@@ -1084,6 +1086,7 @@ export default defineComponent({
     const toBeCloneAlertName = ref("");
     const toBeClonedID = ref("");
     const toBeClonedIsAnomaly = ref(false);
+    const toBeClonedIsComposite = ref(false);
     const toBeClonestreamType = ref("");
     const toBeClonestreamName = ref("");
     const streamTypes = ref(["logs", "metrics", "traces"]);
@@ -2306,11 +2309,12 @@ export default defineComponent({
       toBeClonedID.value = row.alert_id;
       toBeCloneAlertName.value = row.name;
       toBeClonedIsAnomaly.value = row.type === "anomaly";
+      toBeClonedIsComposite.value = row.alert_type === "Composite";
       toBeClonestreamName.value = "";
       toBeClonestreamType.value = "";
       showForm.value = true;
-      // Anomaly rows use the /clone endpoint — no need to pre-fetch full data
-      if (!toBeClonedIsAnomaly.value) {
+      // Anomaly and composite rows use the /clone endpoint — no need to pre-fetch full data
+      if (!toBeClonedIsAnomaly.value && !toBeClonedIsComposite.value) {
         toBeClonedAlert.value = await getAlertById(row.alert_id);
       }
     };
@@ -2369,6 +2373,46 @@ export default defineComponent({
         return;
       }
 
+      // Composite rows: no single stream to select, so use the dedicated
+      // /clone endpoint the same way as anomaly rows, minus stream_type/stream_name
+      // (the backend rejects those fields on a composite payload).
+      if (toBeClonedIsComposite.value) {
+        isSubmitting.value = true;
+        const dismiss = toast({
+          variant: "loading",
+          message: t("toastMessages.alerts.pleaseWait"),
+          timeout: 0,
+        });
+        try {
+          await alertsService.clone_by_id(
+            store.state.selectedOrganization.identifier,
+            toBeClonedID.value,
+            {
+              name: toBeCloneAlertName.value,
+              folder_id: (folderIdToBeCloned.value as string) || "default",
+            },
+            folderIdToBeCloned.value,
+          );
+          dismiss();
+          toast({
+            variant: "success",
+            message: t("toastMessages.alerts.alertClonedSuccessfully"),
+          });
+          showForm.value = false;
+          await getAlertsFn(store, folderIdToBeCloned.value);
+          activeFolderId.value = folderIdToBeCloned.value;
+        } catch (e: any) {
+          dismiss();
+          toast({
+            variant: "error",
+            message: e?.response?.data?.message,
+          });
+        } finally {
+          isSubmitting.value = false;
+        }
+        return;
+      }
+
       if (!toBeClonedAlert.value) {
         toast({
           variant: "error",
@@ -3412,6 +3456,7 @@ export default defineComponent({
       showForm,
       toBeCloneAlertName,
       toBeClonedIsAnomaly,
+      toBeClonedIsComposite,
       toBeClonestreamType,
       toBeClonestreamName,
       streamTypes,