diff options
Diffstat (limited to 'fast-import.c')
| -rw-r--r-- | fast-import.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fast-import.c b/fast-import.c index f9347f55b..8d8ea3c45 100644 --- a/fast-import.c +++ b/fast-import.c @@ -2411,6 +2411,8 @@ static void note_change_n(struct branch *b, unsigned char old_fanout) /* <committish> */ s = lookup_branch(p); if (s) { + if (is_null_sha1(s->sha1)) + die("Can't add a note on empty branch."); hashcpy(commit_sha1, s->sha1); } else if (*p == ':') { uintmax_t commit_mark = strtoumax(p + 1, NULL, 10); @@ -2712,6 +2714,8 @@ static void parse_new_tag(void) from = strchr(command_buf.buf, ' ') + 1; s = lookup_branch(from); if (s) { + if (is_null_sha1(s->sha1)) + die("Can't tag an empty branch."); hashcpy(sha1, s->sha1); type = OBJ_COMMIT; } else if (*from == ':') { |