diff --git a/src/main/java/org/jabref/gui/collab/EntryAddChangeViewModel.java b/src/main/java/org/jabref/gui/collab/EntryAddChangeViewModel.java
index 4cb0acf6c51..45832985b5b 100644
--- a/src/main/java/org/jabref/gui/collab/EntryAddChangeViewModel.java
+++ b/src/main/java/org/jabref/gui/collab/EntryAddChangeViewModel.java
@@ -11,7 +11,7 @@
 import org.jabref.model.database.BibDatabaseContext;
 import org.jabref.model.entry.BibEntry;
 
-class EntryAddChangeViewModel extends DatabaseChangeViewModel  {
+class EntryAddChangeViewModel extends DatabaseChangeViewModel {
 
     private final BibEntry diskEntry;
 
diff --git a/src/main/java/org/jabref/gui/collab/EntryChangeViewModel.java b/src/main/java/org/jabref/gui/collab/EntryChangeViewModel.java
index 2cdc1953335..56ce1f1a0ea 100644
--- a/src/main/java/org/jabref/gui/collab/EntryChangeViewModel.java
+++ b/src/main/java/org/jabref/gui/collab/EntryChangeViewModel.java
@@ -34,7 +34,7 @@ public EntryChangeViewModel(BibEntry entry, BibEntry newEntry, BibDatabaseContex
                     .map(key -> Localization.lang("Modified entry") + ": '" + key + '\'')
                     .orElse(Localization.lang("Modified entry"));
 
-        mergePanel = new MergeEntries(firstEntry, secondEntry, database.getMode());
+        mergePanel = new MergeEntries(firstEntry, null, database.getMode());
     }
 
     @Override
diff --git a/src/main/java/org/jabref/gui/collab/EntryDeleteChangeViewModel.java b/src/main/java/org/jabref/gui/collab/EntryDeleteChangeViewModel.java
index 5637fde0a2d..6f36948a785 100644
--- a/src/main/java/org/jabref/gui/collab/EntryDeleteChangeViewModel.java
+++ b/src/main/java/org/jabref/gui/collab/EntryDeleteChangeViewModel.java
@@ -14,7 +14,7 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-class EntryDeleteChangeViewModel extends DatabaseChangeViewModel   {
+class EntryDeleteChangeViewModel extends DatabaseChangeViewModel {
 
     private static final Logger LOGGER = LoggerFactory.getLogger(EntryDeleteChangeViewModel.class);
     private final BibEntry entry;