Fix keyfile memory setting.

src/com/keepassdroid/database/LoadDB.java

@@ -59,9 +59,7 @@ public class LoadDB extends RunnableOnFinish {
 		try {
 			mDb.LoadData(mCtx, mFileName, mPass, mKey);
 			
-			if ( mRememberKeyfile ) {
-				saveFileData(mFileName, mKey);
-			}
+			saveFileData(mFileName, mKey);
 			
 		} catch (InvalidCipherTextException e) {
 			finish(false, mCtx.getString(R.string.InvalidPassword));
@@ -84,6 +82,10 @@ public class LoadDB extends RunnableOnFinish {
 		FileDbHelper db = new FileDbHelper(mCtx);
 		db.open();
 		
+		if ( ! mRememberKeyfile ) {
+			key = "";
+		}
+		
 		db.createFile(fileName, key);
 		
 		db.close();

src/com/keepassdroid/fileselect/FileDbHelper.java

@@ -180,8 +180,11 @@ public class FileDbHelper {
 		
 	}
 	
-	public void deleteAll() {
-		mDb.delete(FILE_TABLE, null, null);
+	public void deleteAllKeys() {
+		ContentValues vals = new ContentValues();
+		vals.put(KEY_FILE_KEYFILE, "");
+		
+		mDb.update(FILE_TABLE, vals, null, null);
 	}
 	
 	public Cursor fetchAllFiles() {

src/com/keepassdroid/settings/AppSettingsActivity.java

@@ -56,7 +56,7 @@ public class AppSettingsActivity extends PreferenceActivity {
 				if ( ! value.booleanValue() ) {
 					FileDbHelper helper = new FileDbHelper(AppSettingsActivity.this);
 					helper.open();
-					helper.deleteAll();
+					helper.deleteAllKeys();
 					helper.close();
 				}