fix unexisting feature at creation not prevented

src/views/feature/Feature_edit.vue

@@ -267,7 +267,7 @@ import featureAPI from "@/services/feature-api";
 import L from "leaflet";
 import "leaflet-draw";
 import { mapUtil } from "@/assets/js/map-util.js";
-import axios from '@/axios-client.js';
+import axios from "@/axios-client.js";
 import flip from "@turf/flip";
 
 // axios.defaults.headers.common["X-CSRFToken"] = ((name) => {
@@ -367,9 +367,8 @@ export default {
       return this.$route.name;
     },
 
-    feature: function () {
-      const result = this.$store.state.feature.current_feature;
-      return result;
+    feature () {
+      return this.$store.state.feature.current_feature;
     },
 
     orderedCustomFields() {
@@ -1008,25 +1007,31 @@ export default {
   },
 
   mounted() {
-    axios.all([this.$store
-                .dispatch("GET_PROJECT_INFO", this.$route.params.slug),
-              this.$store.dispatch('feature/GET_PROJECT_FEATURE', {
-                project_slug: this.$route.params.slug,
-                feature_id: this.$route.params.slug_signal
-              })])
-        .then(() => {
-          this.initForm();
-          this.initMap();
-          this.onFeatureTypeLoaded();
-          this.initExtraForms(this.feature);
-
-          setTimeout(
-            function () {
-              mapUtil.addGeocoders(this.$store.state.configuration);
-            }.bind(this),
-            1000
-          );
-        });
+    let promises = [
+      this.$store.dispatch("GET_PROJECT_INFO", this.$route.params.slug),
+    ];
+    if (this.$route.params.slug_signal) {
+      promises.push(
+        this.$store.dispatch("feature/GET_PROJECT_FEATURE", {
+          project_slug: this.$route.params.slug,
+          feature_id: this.$route.params.slug_signal,
+        })
+      );
+    }
+
+    Promise.all(promises).then(() => {
+      this.initForm();
+      this.initMap();
+      this.onFeatureTypeLoaded();
+      if (this.feature) this.initExtraForms(this.feature);
+
+      setTimeout(
+        function () {
+          mapUtil.addGeocoders(this.$store.state.configuration);
+        }.bind(this),
+        1000
+      );
+    });
   },
 
   destroyed() {