[PATCH 0/2] fast-import: empty/reset branch bugs

fast-import uses null_sha1 for empty branches. It doesn't make a 
null_sha1 parent nor writes out a branch with null_sha1 head. But
for notemodify and tag commands there is no check for null_sha1
and so bad tag/notes are produced instead of a error message.

Dmitry Ivankov (2):
  fast-import: don't allow to tag empty branch
  fast-import: don't allow to note on empty branch

 fast-import.c          |    4 ++++
 t/t9300-fast-import.sh |   29 +++++++++++++++++++++++++++++
 2 files changed, 33 insertions(+), 0 deletions(-)

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1.7.3.4