Store the app identifier with the feedback thread. So in case they change by accident, new posts will cause a new thread in the current app to be created

Classes/BITFeedbackManager.m

@@ -47,6 +47,7 @@
 #define kBITFeedbackName            @"HockeyFeedbackName"
 #define kBITFeedbackEmail           @"HockeyFeedbackEmail"
 #define kBITFeedbackLastMessageID   @"HockeyFeedbackLastMessageID"
+#define kBITFeedbackAppID           @"HockeyFeedbackAppID"
 
 
 @implementation BITFeedbackManager {
@@ -320,6 +321,17 @@
   if ([unarchiver containsValueForKey:kBITFeedbackToken])
     self.token = [unarchiver decodeObjectForKey:kBITFeedbackToken];
   
+  if ([unarchiver containsValueForKey:kBITFeedbackAppID]) {
+    NSString *appID = [unarchiver decodeObjectForKey:kBITFeedbackAppID];
+
+    // the stored thread is from another application identifier, so clear the token
+    // which will cause the new posts to create a new thread on the server for the
+    // current app identifier
+    if ([appID compare:self.appIdentifier] != NSOrderedSame) {
+      self.token = nil;
+    }
+  }
+  
   if ([unarchiver containsValueForKey:kBITFeedbackDateOfLastCheck])
     self.lastCheck = [unarchiver decodeObjectForKey:kBITFeedbackDateOfLastCheck];
   
@@ -356,6 +368,9 @@
   if (self.token)
     [archiver encodeObject:self.token forKey:kBITFeedbackToken];
   
+  if (self.appIdentifier)
+    [archiver encodeObject:self.appIdentifier forKey:kBITFeedbackAppID];
+  
   if (self.userID)
     [archiver encodeObject:self.userID forKey:kBITFeedbackUserID];
   

Classes/BITHockeyBaseManager.m

@@ -26,7 +26,6 @@
   
   NSDateFormatter *_rfc3339Formatter;
   
-  NSString *_appIdentifier;
   BOOL _isAppStoreEnvironment;
 }
 
@@ -54,7 +53,7 @@
 - (id)initWithAppIdentifier:(NSString *)appIdentifier isAppStoreEnvironemt:(BOOL)isAppStoreEnvironment {
   if ((self = [self init])) {
  
-    _appIdentifier = appIdentifier;
+    self.appIdentifier = appIdentifier;
     _isAppStoreEnvironment = isAppStoreEnvironment;
   
   }

Classes/BITHockeyBaseManagerPrivate.h

@@ -14,6 +14,8 @@
 
 @interface BITHockeyBaseManager()
 
+@property (nonatomic, retain) NSString *appIdentifier;
+
 - (id)initWithAppIdentifier:(NSString *)appIdentifier isAppStoreEnvironemt:(BOOL)isAppStoreEnvironment;
 
 - (void)startManager;