Merge pull request #9679 from JabRef/remove-initial-backup

JabRef writes a new backup file only if there is a change.

CHANGELOG.md

@@ -23,6 +23,7 @@ Note that this project **does not** adhere to [Semantic Versioning](http://semve
 ### Changed
 
 - 'Get full text' now also checks the file url. [#568](https://github.com/koppor/jabref/issues/568)
+- JabRef writes a new backup file only if there is a change. Before, JabRef created a backup upon start. [#9679](https://github.com/JabRef/jabref/pull/9679)
 - We refined the 'main directory not found' error message. [#9625](https://github.com/JabRef/jabref/pull/9625)
 - We modified the `Add Group` dialog to use the most recently selected group hierarchical context [#9141](https://github.com/JabRef/jabref/issues/9141)
 - We improved the Medline importer to correctly import ISO dates for `revised`. [#9536](https://github.com/JabRef/jabref/issues/9536)

src/main/java/org/jabref/logic/autosaveandbackup/BackupManager.java

@@ -64,7 +64,7 @@ public class BackupManager {
     // During a write, the less recent backup file is deleted
     private final Queue<Path> backupFilesQueue = new LinkedBlockingQueue<>();
 
-    private boolean needsBackup = true;
+    private boolean needsBackup = false;
 
     BackupManager(BibDatabaseContext bibDatabaseContext, BibEntryTypesManager entryTypesManager, PreferencesService preferences) {
         this.bibDatabaseContext = bibDatabaseContext;