Comment 29 for bug 541626

Peter Waller boiled the problem down to a minimal case on irc and attached a script to the github issue. I edited it to push to local branches instead of lp. It needs git-bzr to work, which I cloned from https://github.com/termie/git-bzr-ng.git and then symlinked into ~/bin/ so git would pick it up. Git-bzr uses bzr-fastimport to do the heavy lifting. I expect this can be further reduced to a bzr-fastimport test.

Versions used: bzr 2.6.0dev2 (r6523), bzr-fastimport r356, git-bzr-ng 011a644ccadae9bb577c47d5ac9a5f782a9cca1c

I'll see if I can add a minimal BTreeBuilder._find_ancestors.