update

Author: VinayGuthal

firebase-installations/CHANGELOG.md

@@ -1,5 +1,5 @@
 # Unreleased
-* [fixed] Fix FIS ID duplication issue from backup data. (#7025)
+* [fixed] Mitigated FIS ID duplication issue from backup data. (#7025)
 
 # 18.0.0
 * [changed] Bump internal dependencies

firebase-installations/src/main/java/com/google/firebase/installations/local/PersistedInstallation.java

@@ -95,6 +95,8 @@ private File getDataFile() {
           if (dataFile.exists()) {
             return dataFile;
           }
+          // Data associated with FID shouldn't be stored in backup directory. Hence if the FID data
+          // is present in the backup directory you move it to the non backup directory.
           File dataFileBackup =
               new File(
                   firebaseApp.getApplicationContext().getFilesDir(),
@@ -105,6 +107,7 @@ private File getDataFile() {
                   TAG,
                   "Unable to move the file from back up to non back up directory",
                   new IOException("Unable to move the file from back up to non back up directory"));
+              return dataFileBackup;
             }
           }
         }