General question regarding interrupting bzr operations

[Nicholas Allen]

Hi,

After experiencing this problem with interrupting pull I was wondering 
if there may be similar problems in merge. Do you think that a power 
failure in the middle of a merge could leave a branch in a messed up 
state that it could not recover from? Just wondering if there would be a 
way to repair a branch in this happened? Are there test cases that 
simulate this scenario and is bzr generally designed to handle these 
kinds of problems?

Thanks,

Nick