2.10.0: multiple versionsort.prereleasesuffix buggy?

["Leho Kraav (Conversion Ready)" <leho@xxxxxxxxxxxxxxxxxxx>]

Hi all


Here's the testing tree https://github.com/woothemes/woocommerce

.git/config has:

[versionsort] 


    prereleasesuffix = -beta
    prereleasesuffix = -RC

$ git tag -l --sort=version:refname
...
2.5.0-RC1
2.5.0-RC2
2.5.0-RC3
2.5.0-beta-1
2.5.0-beta-2
2.5.0-beta-3
2.5.0
2.5.1
2.5.2
2.5.3
2.5.4
2.5.5
2.6.0-RC1
2.6.0-RC2
2.6.0-beta-1
2.6.0-beta-2
2.6.0-beta-3
2.6.0-beta-4
2.6.0
2.6.1
2.6.2
2.6.3
2.6.4

Per documentation, I'm supposed to see something like
...
2.5.0-beta-1
2.5.0-beta-2
2.5.0-beta-3
2.5.0-RC1
2.5.0-RC2
2.5.0-RC3
2.5.0
...


No matter what I do in `.git/config`, RC goes up front. What's going on?

(Yes, this project's tag capitalization is messed up.)