diff --git a/src/main/java/ru/ulstu/extractor/controller/GitIndexingController.java b/src/main/java/ru/ulstu/extractor/controller/GitIndexingController.java
index 00beb20..18ddb48 100644
--- a/src/main/java/ru/ulstu/extractor/controller/GitIndexingController.java
+++ b/src/main/java/ru/ulstu/extractor/controller/GitIndexingController.java
@@ -57,8 +57,8 @@ public class GitIndexingController {
                 model.addAttribute("error", ex.getMessage());
                 return "newRepo";
             }
-            redirectAttributes.addAttribute("url", repoForm.getRepo());
-            redirectAttributes.addAttribute("branch", repoForm.getBranch());
+            redirectAttributes.addAttribute("repositoryUrl", repoForm.getRepo());
+            redirectAttributes.addAttribute("branchName", repoForm.getBranch());
             return "redirect:/filtering";
         }
     }
diff --git a/src/main/java/ru/ulstu/extractor/model/Commit.java b/src/main/java/ru/ulstu/extractor/model/Commit.java
index e7d6795..916f81f 100644
--- a/src/main/java/ru/ulstu/extractor/model/Commit.java
+++ b/src/main/java/ru/ulstu/extractor/model/Commit.java
@@ -18,7 +18,7 @@ public class Commit extends BaseEntity {
     private String hash;
     private Date date;
     private String message;
-    @ManyToOne
+    @ManyToOne(cascade = CascadeType.ALL, fetch = FetchType.LAZY)
     private Author author;
     @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.LAZY)
     @JoinColumn(name = "commit_id", unique = true)
@@ -28,10 +28,11 @@ public class Commit extends BaseEntity {
     public Commit() {
     }
 
-    public Commit(String message, Author author, Date date) {
+    public Commit(String message, Author author, Date date, String hash) {
         this.message = message;
         this.author = author;
         this.date = date;
+        this.hash = hash;
     }
 
     public String getMessage() {
diff --git a/src/main/java/ru/ulstu/extractor/repository/BranchRepository.java b/src/main/java/ru/ulstu/extractor/repository/BranchRepository.java
index f982d1e..f893bb6 100644
--- a/src/main/java/ru/ulstu/extractor/repository/BranchRepository.java
+++ b/src/main/java/ru/ulstu/extractor/repository/BranchRepository.java
@@ -4,8 +4,6 @@ import org.springframework.data.jpa.repository.JpaRepository;
 import ru.ulstu.extractor.model.Branch;
 import ru.ulstu.extractor.model.Repository;
 
-import java.util.Optional;
-
 public interface BranchRepository extends JpaRepository<Branch, Integer> {
-    Optional<Branch> findByRepositoryAndName(Repository repository, String name);
+    Branch findByRepositoryAndName(Repository repository, String name);
 }
diff --git a/src/main/java/ru/ulstu/extractor/repository/RepositoryRepository.java b/src/main/java/ru/ulstu/extractor/repository/RepositoryRepository.java
index cedaa75..21263f4 100644
--- a/src/main/java/ru/ulstu/extractor/repository/RepositoryRepository.java
+++ b/src/main/java/ru/ulstu/extractor/repository/RepositoryRepository.java
@@ -3,8 +3,6 @@ package ru.ulstu.extractor.repository;
 import org.springframework.data.jpa.repository.JpaRepository;
 import ru.ulstu.extractor.model.Repository;
 
-import java.util.Optional;
-
 public interface RepositoryRepository extends JpaRepository<Repository, Integer> {
-    Optional<Repository> findByUrl(String url);
+    Repository findByUrl(String url);
 }
diff --git a/src/main/java/ru/ulstu/extractor/service/GitRepositoryService.java b/src/main/java/ru/ulstu/extractor/service/GitRepositoryService.java
index e99e700..ef26349 100644
--- a/src/main/java/ru/ulstu/extractor/service/GitRepositoryService.java
+++ b/src/main/java/ru/ulstu/extractor/service/GitRepositoryService.java
@@ -76,13 +76,14 @@ public class GitRepositoryService {
         Repository localRepo = new FileRepository(getProjectGitDirectory(repositoryUrl));
         Git git = new Git(localRepo);
         git.pull().call();
-        Ref ref = git.checkout().
-                setCreateBranch(true).
-                setName(branchName).
-                setUpstreamMode(CreateBranchCommand.SetupUpstreamMode.TRACK).
-                setStartPoint("origin/" + branchName).
-                call();
-
+        if (!localRepo.getBranch().equals(branchName)) {
+            Ref ref = git.checkout().
+                    setCreateBranch(true).
+                    setName(branchName).
+                    setUpstreamMode(CreateBranchCommand.SetupUpstreamMode.TRACK).
+                    setStartPoint("origin/" + branchName).
+                    call();
+        }
         List<RevCommit> commits = new ArrayList<>();
         git.log().call().forEach(commits::add);
 
@@ -92,7 +93,8 @@ public class GitRepositoryService {
             Commit commit = new Commit(
                     revCommit.getFullMessage(),
                     new Author(revCommit.getAuthorIdent().getName()),
-                    Date.from(Instant.ofEpochSecond(revCommit.getCommitTime())));
+                    Date.from(Instant.ofEpochSecond(revCommit.getCommitTime())),
+                    revCommit.getName());
             if (prevCommit != null) {
                 commit.setFileChanges(findDiffBetweenTwoRevisions(revCommit, prevCommit, localRepo));
             }
diff --git a/src/main/java/ru/ulstu/extractor/service/IndexService.java b/src/main/java/ru/ulstu/extractor/service/IndexService.java
index 113a70b..413685f 100644
--- a/src/main/java/ru/ulstu/extractor/service/IndexService.java
+++ b/src/main/java/ru/ulstu/extractor/service/IndexService.java
@@ -31,11 +31,16 @@ public class IndexService {
     }
 
     public void index(@NotNull String repositoryUrl, @NotNull String branchName) throws GitAPIException, IOException {
-        Repository repository = repositoryRepository.findByUrl(repositoryUrl)
-                .orElse(repositoryRepository.save(new Repository(repositoryUrl)));
-        Branch branch = branchRepository.findByRepositoryAndName(repository, branchName)
-                .orElse(branchRepository.save(new Branch(repository, branchName)));
+        Repository repository = repositoryRepository.findByUrl(repositoryUrl);
+        if (repository == null) {
+            repositoryRepository.save(new Repository(repositoryUrl));
+        }
+        Branch branch = branchRepository.findByRepositoryAndName(repository, branchName);
+        if (branch == null) {
+            branchRepository.save(new Branch(repository, branchName));
+        }
         List<Commit> commits = gitRepositoryService.getCommits(repositoryUrl, branchName);
         branch.setCommits(commits);
+        branchRepository.save(branch);
     }
 }