diff -r 8be80ea4f52b -r 250c5cbb8276 src/main/java/de/uapcore/lightpit/viewmodel/ProjectDetails.java
--- a/src/main/java/de/uapcore/lightpit/viewmodel/ProjectDetails.java	Sat Aug 29 16:48:15 2020 +0200
+++ b/src/main/java/de/uapcore/lightpit/viewmodel/ProjectDetails.java	Sat Aug 29 17:13:09 2020 +0200
@@ -4,54 +4,34 @@
 import de.uapcore.lightpit.entities.IssueSummary;
 import de.uapcore.lightpit.entities.Version;
 
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Collections;
 import java.util.List;
 
 public class ProjectDetails {
 
-    private List<VersionInfo> versionInfos = Collections.emptyList();
+    private VersionInfo versionInfo = null;
 
-    private List<Issue> issues = Collections.emptyList();
-    private List<Issue> issuesWithoutVersion;
-    private IssueSummary issuesWithoutVersionTotal;
+    private List<Issue> issues;
+    private IssueSummary issueSummary;
+
+    public void updateDetails(List<Issue> issues, Version version) {
+        this.issues = issues;
+        issueSummary = new IssueSummary();
+        issues.forEach(issueSummary::add);
+        if (version != null) {
+            versionInfo = new VersionInfo(version);
+            versionInfo.collectIssues(issues);
+        }
+    }
 
     public List<Issue> getIssues() {
         return issues;
     }
 
-    public void setIssues(List<Issue> issues) {
-        this.issues = issues;
-        issuesWithoutVersion = new ArrayList<>();
-        issuesWithoutVersionTotal = new IssueSummary();
-        for (Issue issue : issues) {
-            // we want to list all issues that do not have a target version
-            if (issue.getResolvedVersions().isEmpty()) {
-                issuesWithoutVersion.add(issue);
-                issuesWithoutVersionTotal.add(issue);
-            }
-        }
+    public IssueSummary getIssueSummary() {
+        return issueSummary;
     }
 
-    public void updateVersionInfo(Collection<Version> versions) {
-        versionInfos = new ArrayList<>();
-        for (Version version : versions) {
-            final var info = new VersionInfo(version);
-            info.collectIssues(issues);
-            versionInfos.add(info);
-        }
-    }
-
-    public List<Issue> getIssuesWithoutVersion() {
-        return issuesWithoutVersion;
-    }
-
-    public IssueSummary getIssuesWithoutVersionTotal() {
-        return issuesWithoutVersionTotal;
-    }
-
-    public List<VersionInfo> getVersionInfos() {
-        return versionInfos;
+    public VersionInfo getVersionInfo() {
+        return versionInfo;
     }
 }