Fixed git plugin (#961)

cvat-ui/src/utils/git-utils.ts

@@ -11,7 +11,7 @@ interface GitPlugin {
             Task: {
                 prototype: {
                     save: {
-                        leave: (plugin: GitPlugin, task: any) => void;
+                        leave: (plugin: GitPlugin, task: any) => Promise<any>;
                     };
                 };
             };
@@ -73,12 +73,12 @@ async function cloneRepository(
     this: any,
     plugin: GitPlugin,
     createdTask: any,
-): Promise<void> {
-    return new Promise((resolve, reject): void => {
+): Promise<any> {
+    return new Promise((resolve, reject): any => {
         if (typeof (this.id) !== 'undefined' || plugin.data.task !== this) {
             // not the first save, we do not need to clone the repository
             // or anchor set for another task
-            resolve();
+            resolve(createdTask);
         } else if (plugin.data.repos) {
             if (plugin.callbacks.onStatusChange) {
                 plugin.callbacks.onStatusChange('The repository is being cloned..');
@@ -95,7 +95,7 @@ async function cloneRepository(
                     tid: createdTask.id,
                 }),
             }).then(waitForClone).then((): void => {
-                resolve();
+                resolve(createdTask);
             }).catch((error: any): void => {
                 createdTask.delete().finally((): void => {
                     reject(