"unable to remap" error with git svn after upgrade to Win10

Hi,
I'm using git for windows 1.9.5-preview20150319 and was successfully using git svn, but after upgrading (from Win8.1) to Win10 git svn doesn't work anymore. I get
	C:\Program Files (x86)\Git\bin\perl.exe: *** unable to remap C:\Program Files (x86)\Git\bin\libsvn_repos-1-0.dll to same address as parent -- 0xC30000

I found a couple of issue reports on github referring to a workaround for similar problems using rebase.exe, but are somewhat reluctant to assign memory on a trial and error basis. Can someone give me some pointers on how to deduce a meaningful base address for libsvn_repos-1-0.dll to pass to rebase.exe?

Also with the release date of Win10 approaching you might want to consider a new release addressing the issue. I'd be surprised if I was the only one affected...

Best Regards,
Christoph