bug 965608 - lock repo down to the 1.12.9 tag. r=nthomas
bug 965608 - lock repo down to the 1.12.9 tag. r=nthomas

lundjordan/mozharness,kartikgupta0909/mozilla-mozharness,kartikgupta0909/build-mozharness,kartikgupta0909/mozilla-mozharness,kartikgupta0909/gittest,lissyx/build-mozharness,mozilla/build-mozharness,armenzg/build-mozharness,lissyx/build-mozharness,mozilla/build-mozharness,mrrrgn/build-mozharness,kartikgupta0909/build-mozharness,kartikgupta0909/gittest,escapewindow/mozharness,walac/build-mozharness,simar7/build-mozharness,walac/build-mozharness,lundjordan/mozharness,escapewindow/mozharness,armenzg/build-mozharness,simar7/build-mozharness,mrrrgn/build-mozharness