How to manage with Blueprint version control by svn

We use SVN to manage code version control .

but it is annoy for Multiple guys work on one blueprint case.BP is the binary data it can not fix the conflict with each developer committed change.

So are there any good way for Blurprint version control by Multiple worker.

I suppose to UE4 blueprint will design like c++ source code. but not the binary data. it will good for version control

I found a solution to lock the blueprint file in svn.