Otherwise we'll never run future migrations. (#1314)

// FREEBIE

Signal/Signal-Info.plist

@@ -21,7 +21,7 @@
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>2.4.1</string>
+	<string>2.4.2</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleURLTypes</key>
@@ -38,7 +38,7 @@
 		</dict>
 	</array>
 	<key>CFBundleVersion</key>
-	<string>2.4.1.1</string>
+	<string>2.4.2.0</string>
 	<key>ITSAppUsesNonExemptEncryption</key>
 	<false/>
 	<key>LOGS_EMAIL</key>

Signal/src/environment/VersionMigrations.m

@@ -36,6 +36,7 @@
     NSString *previousVersion = Environment.preferences.lastRanVersion;
     if (!previousVersion) {
         DDLogInfo(@"No previous version found. Probably first launch since install - nothing to migrate.");
+        [Environment.preferences setAndGetCurrentVersion];
         return;
     }