Re: rebase from ambiguous ref discards changes

On Thu, 2007-09-06 at 16:26 -0700, Junio C Hamano wrote:

We haven't touched this area for a long time (like "v1.3.0" or
"since March 2006").  I wish you told us about this earlier.

I would have were I certain that it wasn't user-error last time. I took
a few minutes this time to verify precisely what I saw and reproduce it.

I'd like to reproduce this, but I need to be sure what your
"ambiguous" situation is really like.  What ambiguous "master"s
do you have?  IOW, what does:

	git show-ref | grep master

$ git show-ref | grep master
286f5df0b62f571cbb4dbf120679d3af029b8775 refs/heads/master
1feb733eb8b09a8b07b7a6987add5149c53b0157 refs/heads/master-guitar
d957c6b8e1dde8e11c1db3431e0ff58c5d984880 refs/heads/master-i830
0fd3ba0518b3cde9ca0e4e2fc1854c00d8a43d5c refs/remotes/kyle/master
e25f8e145f4f73b62c32389b922291fd561af9d2 refs/remotes/origin/lg3d-master
286f5df0b62f571cbb4dbf120679d3af029b8775 refs/remotes/origin/master
e25f8e145f4f73b62c32389b922291fd561af9d2 refs/remotes/otc/lg3d-master
6781575f734f05547d7d5ceef4116fc157bba44d refs/remotes/otc/master

so, nothing obviously amiss here.

Perhaps you have ".git/master" by mistake?

oops.

$ find .git -name master
.git/master
.git/refs/heads/master
.git/refs/remotes/kyle/master
.git/refs/remotes/origin/master
.git/refs/remotes/otc/master
.git/logs/refs/heads/master
.git/logs/refs/remotes/fdo/master
.git/logs/refs/remotes/kyle/master
.git/logs/refs/remotes/origin/master
.git/logs/refs/remotes/otc/master

So, I think that explains where the ambiguous master came from.  Seems
like rebase should be able to bail out before breaking things though.

-- 
keith.packard@intel.com