sdk: Win x64 SDK Installer downloaded version doesn't match repo label version

Steps to reproduce

Download the .NET Core SDK Installer (MSI) for Windows x64

Expected behavior

Get version -2586

Actual behavior

Receive version -2543

Environment data

.NET Command Line Tools (1.0.0-rc2-002543)

Product Information:
 Version:     1.0.0-rc2-002543
 Commit Sha:  38d0c28a1e

Runtime Environment:
 OS Name:     Windows
 OS Version:  10.0.10586
 OS Platform: Windows
 RID:         win10-x64