Bugfix refexists-Methods

Author: Robert Kyriakis

PBCreateBranchSheet.m

@@ -102,7 +102,7 @@ - (IBAction) createBranch:(id)sender
     }
     else
     {
-        if (refExistsReturnMessage != @"")
+        if (refExistsReturnMessage)
         {
            int returnButton = [[NSAlert alertWithMessageText:refExistsReturnMessage
                              defaultButton:@"Yes"

PBCreateTagSheet.m

@@ -83,7 +83,7 @@ - (IBAction) createTag:(id)sender
     }
     else
     {
-        if (refExistsReturnMessage != @"")
+        if (refExistsReturnMessage)
         {
             int returnButton = [[NSAlert alertWithMessageText:refExistsReturnMessage
                                                 defaultButton:@"Yes"

PBGitRepository.m

@@ -675,7 +675,14 @@ - (BOOL)refExists:(PBGitRef *)ref checkOnRemotesWithoutBranches:(BOOL)remoteChec
 
     if (result)
     {
-        *result = completeResults;
+        if ([completeResults length])
+        {
+            *result = completeResults;
+        }
+        else
+        {
+            result = Nil;
+        }
     }
     return NO;
 }
@@ -759,6 +766,7 @@ - (BOOL)refExistsOnRemote:(PBGitRef *)ref remoteName:(NSString *)remote resultMe
         return YES;
     }
 
+    result = Nil;
     return NO;
 }
 
@@ -774,7 +782,7 @@ - (BOOL)refExistsOnAnyRemote:(PBGitRef*)ref resultMessage:(NSString**)result
         return NO;
     }
 
-    NSMutableString *completeResult = [NSMutableString string];
+    NSMutableString *completeResults = [NSMutableString string];
 
     if ([self hasRemotes])
     {
@@ -786,12 +794,12 @@ - (BOOL)refExistsOnAnyRemote:(PBGitRef*)ref resultMessage:(NSString**)result
             {
                 if (oneResult)
                 {
-                    [completeResult appendString:oneResult];
+                    [completeResults appendString:oneResult];
                 }
 
                 if (result)
                 {
-                    *result = completeResult;
+                    *result = completeResults;
                 }
 
                 return YES;
@@ -800,7 +808,7 @@ - (BOOL)refExistsOnAnyRemote:(PBGitRef*)ref resultMessage:(NSString**)result
             {
                 if (oneResult)
                 {
-                    [completeResult appendString:oneResult];
+                    [completeResults appendString:oneResult];
                 }
             }
         }
@@ -816,7 +824,14 @@ - (BOOL)refExistsOnAnyRemote:(PBGitRef*)ref resultMessage:(NSString**)result
 
     if (result)
     {
-        *result = completeResult;
+        if ([completeResults length])
+        {
+            *result = completeResults;
+        }
+        else
+        {
+            result = Nil;
+        }
     }
     return NO;
 }

PBRenameSheet.m

@@ -103,7 +103,7 @@ - (IBAction)renameRef:(id)sender
     }
     else
     {
-        if (refExistsReturnMessage != @"")
+        if (refExistsReturnMessage)
         {
             int returnButton = [[NSAlert alertWithMessageText:refExistsReturnMessage
                                                 defaultButton:@"Yes"