How to open branch object equivalent of -r ancestor::parent

[Alexander Belchenko]

Aaron Bentley пишет:
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> On 12-03-29 12:12 PM, Alexander Belchenko wrote:
>> I've got error message instead of expected delta between 2 trees:
>>
>> _KnitGraphIndex(CombinedGraphIndex(<bzrlib.btree_index.BTreeGraphIndex
>>
>>
> object at 0x02EEEF10>, <bzrlib.btree_index.BTreeGraphIndex object at
>> 0x02EEEE30>)) is not locked
>>
>> What did I do wrong?
> 
> You need to take read (or write) locks on both repositories.  One way
> to do this is to take locks on both branches.

Thank you! That helps.

> 
> Aaron
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