fast-import: prevent producing bad delta

diff --git a/branch.c b/branch.c
index 93dc866f8c09a2da2308c4fd677178b043f2d4d5..c0c865a4b1b0fca038f32b77f2239d7987438ff5 100644 (file)
--- a/branch.c
+++ b/branch.c
@@ -175,9 +175,14 @@ void create_branch(const char *head,
                        die("Cannot setup tracking information; starting point is not a branch.");
                break;
        case 1:
-               /* Unique completion -- good, only if it is a real ref */
-               if (explicit_tracking && !strcmp(real_ref, "HEAD"))
-                       die("Cannot setup tracking information; starting point is not a branch.");
+               /* Unique completion -- good, only if it is a real branch */
+               if (prefixcmp(real_ref, "refs/heads/") &&
+                   prefixcmp(real_ref, "refs/remotes/")) {
+                       if (explicit_tracking)
+                               die("Cannot setup tracking information; starting point is not a branch.");
+                       else
+                               real_ref = NULL;
+               }
                break;
        default:
                die("Ambiguous object name: '%s'.", start_name);
@@ -217,6 +222,7 @@ void create_branch(const char *head,
 
 void remove_branch_state(void)
 {
+       unlink(git_path("CHERRY_PICK_HEAD"));
        unlink(git_path("MERGE_HEAD"));
        unlink(git_path("MERGE_RR"));
        unlink(git_path("MERGE_MSG"));