rebase --merge question

Hi all,

From help rebase:

--merge
Use merging strategies to rebase. When the recursive (default) merge
strategy is used, this allows rebase to be aware of renames on the upstream side.

Renames of what? Files I assume. Are there any disadvantages compared to the normal rebase? If not, why isn't --merge the default behaviour.

Thanks,

Stijn

Stijn Souffriau
Embedded Software Developer - Mind Embedded Software Division

ESSENSIUM nv
Mind - Embedded Software Division
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